Which list consists of elements that have the most similar chemical properties?


a) Cu, Zn, Fe

b) K, Ca, Br

c) Mg, Al, Si

d) Cs, Na, K

Answers

Answer 1

The list that consists of elements that have the most similar chemical properties is caesium, sodium and potassium (option D).

What is the periodic table?

Periodic table is the tabular chart of the chemical elements according to their atomic numbers so that elements with similar properties are in the same group (column).

The periodic table is made up of chemical elements arranged in groups and periods. Chemical elements in the same group possess similar chemical properties.

According to this question, the following elements are in the same group 1:

Caesium is a chemical element (symbol Cs) with an atomic number of 55. It is a soft, gold-colored, highly reactive alkali metal. Sodium is a chemical element (symbol Na) with an atomic number of 11 and atomic weight of 22.98977.Pottasium is an element (symbol K) with an atomic number of 19 and atomic weight of 39.0983.

Therefore, Cs, K and Na will have the most similar chemical properties because they belong to the same group.

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Related Questions

Balance the chemical equation below using the smallest possible whole number stoichiometric coefficients.

Answers

The balanced chemical reaction equation is obtained as [tex]Fe(s) + 2O_{2} (g) + H_{2} O ---- > 2Fe(OH)_{2} (aq)[/tex]

What is a chemical reaction equation?

The term chemical reaction equation refers to the way that we represent the combination of the reactants that leads to the formation of the products ins given chemicals reaction process. We know that the stoichiometry of the reaction is very important as it does show us how the reactants and the products can be combined for the particular reaction that we are considering.

We now have the reaction that is occurring between the metallic iron and oxygen and water. This is the reaction that occurs when there is rusting that is occurring on a given or  particular piece of iron as we have it here.

We shall now attempt to look at the equation so that the equation that has been shown in the question can be appropriately balanced according to the rules.

Thus, we could write the balanced chemical reaction equation as; [tex]Fe(s) + 2O_{2} (g) + H_{2} O ---- > 2Fe(OH)_{2} (aq)[/tex]

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if you take a square tlc plate and develop a compound mixture with one solvent mixture, dry the plate, and later develop it with a different solvent mixture; you can separate one set of compounds well and then separate another set of compounds well. in which directions should you develop the tlc plate with the two different solvent mixtures? this technique is often used to separate molecules of biological interest.

Answers

You should develop the TLC (thin layer chromatography) plate orthogonally (under a 90-degree angle) to the original direction of development (along its width, while the original development was along the length of the TLC plate).

This technique is called 2D TLC (two-dimensional thin layer chromatography) and is usually employed to analyze and preparatively separate very complex mixtures that cannot be separated using only one solvent system. The initial development (along the length of the TLC plate) enables crude separation into groups of compounds with similar retention factor (Rf). These groups can then be further separated using a different solvent system by developing the same TLC plate along its width.

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Which of the following is true about photochemical smog?

It hardens metals and stones.
It creates a gray haze in the air.
It exists in damp, cold weather.
It is formed from nitrogen oxides.

Answers

Photochemical smog is  formed from nitrogen oxides.

What is photochemical smog?

When the sun's ultraviolet rays interact with the atmosphere's nitrogen oxides, photochemical smog is created. It appears as a brown haze and is most noticeable in the morning and late afternoon, particularly in warm, densely populated places.

Although the formation of photochemical haze is a complicated process, its origin is relatively clear. While coal-fired power plants and some other power plants also produce the required pollutants to permit its manufacturing, automobiles are the main contributor.

Therefore, Photochemical smog is  formed from nitrogen oxides.

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The photochemical smog is formed from nitrogen oxides. Thus option D is correct.

What is photochemical smog?

Photochemical smog is defined as a combination of pollutants that are produced when sunlight interacts with nitrogen oxides and volatile organic compounds (VOCs), resulting in a brown haze above cities.

It is also defined as a brownish-gray haze brought on by the sun's UV rays reacting with the atmosphere's hydrocarbon and nitrogen oxide pollution.

When volatile organic molecules and nitrogen oxides interact with sunlight, photochemical smog is formed, which is comparable to a mixture of contaminants.

Thus, the photochemical smog is formed from nitrogen oxides. Thus option D is correct.

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If an Element has 67 Protons and 68 Neutrons, how many electrons does the element have?

Answers

Answer:

67 electrons

Explanation:

Most of the time, the number of protons is the same as the number of electrons because of their relation.

9. running a strong enough electric current through water will cause it to decompose into hydrogen and oxygen gas. write the balanced chemical equation for this process. what is being oxidized, and what is being reduced?

Answers

Answer:

Explanation: when electric current is passed through water, water dissociates into hydrogen and oxygen. Hydrogen is deposited over negative pole and oxygen is deposited over positive pole. Deposition of hydrogen and oxygen at different poles is visible in the form of bubbles.

Which of the following compounds contains the greatest percent by mass of nitrogen

Answers

Answer:

[tex]A\colon NH_3[/tex]

Explanation:

Here, we want to get which of the compounds have the highest percentage by mass of nitrogen

What we have to do here is to divide the mass of nitrogen atoms in the compound by the molecular mass of the compound

a) NH3

The atomic mass of nitrogen is 14 amu, the atomic mass of hydrogen is 1 amu

The molar mass is thus 14 + 3(1) = 17 g/mol

The percentage by mass of nitrogen will be

14/17 * 100 = 82.35 %

b) HCN

The atomic mass of carbon is 12 amu

Thus, we have the molar mass as

1 + 12 + 14 = 27 g/mol

Percentage of nitrogen by mass will be : 14/27 * 100 = 51.85 %

c) For N2O

The atomic mass of oxygen is 16 amu

The molar mass of the compound will be 14(2) + 16 = 44 g/mol

Percentage of nitrogen by mass will be = 28/44 * 100 = 63.64 %

d) NI3

The atomic mass of iodine is 127 g/mol

So the molar mass of the compound will be:

14 + 3(127) = 395 g/mol

Percentage by mass of nutrogen will be

14/395 * 100 = 3.54 %

From what we have, the highest percentage by mass of nitrogen is 82.35 % and that belongs to ammonia (NH3)

unit 3 balancing lab chemistry
HELP PLEASEEEEEEE
1. zn___AgCI->___ZnCI2+___Ag
2. FeCI3+___H2s->___FeCI2+___HCI+___s
3. ___Ag2O->___Ag+___O2
4.AI2O3->___AI+___O2
5.K+___H2O->___KOH+___H2
6. Caco3->___CaO+___CO2
7. MG+___O2->Mgo
8. CO+___Fe2O3->___Fe+___CO2
9. H2+___Fe2O3->___Fe+___H2O
10. ___HCI+ZN->___H2+___ZnCI2

Answers

zn + 2 AgCI-> ZnCI2+ 2Ag

2 FeCI3+ 3 H2s->___FeCI2+ 6 HCI+___s

2 Ag2O-> 4 Ag+ O2

4AI2O3-> 3 AI+ 2O2

2 K+ 2H2O-> 2 KOH+ H2

Caco3-> CaO+ CO2

2 MG+ O2-> 2MgO

CO+ 3 Fe2O3-> 2 Fe+ 3CO2

2 H2+ 3 Fe2O3-> Fe+ 3H2O

HCI+ 2 ZN-> H2+ ZnCI2

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according to laplace's law: group of answer choices should remain inflated because the pressure inside of the alveoli is greater than atmospheric pressure should remain in a stable state should increase gas exchange during inhalation

Answers

According to Laplace's law lungs should remain inflated because the pressure inside of the alveoli is greater than atmospheric pressure.

According to this law of Laplace, if the radius of the blood vessel is larger than the wall tension required will be larger in order to withstand or overcome the pressure which is exerted by internal fluids or gases.

The alveoli are to remain inflated as the gaseous pressure which is developed inside the alveoli is greater than the pressure of atmosphere.

When the blood vessel thickens or its thickness increases, it will result in the reduction of the tension developed by the gas at a given constant pressure.

It was published in a research paper that according to law of Laplace, lung should remain inflated because air pressure in alveoli is more than the pressure of the atmosphere.

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if use a sepratory funnel containing a phenol with methylene chloride and an nahco3, where will the phenol be located? the answer is organic and bottom layer, but why is that and how do we answer similar questions?

Answers

phenol does not react with NaHCO3 , phenol solubility in water is very less about 8g in 100mL of water , so it will be present in organic layer (methylene chloride) , methylene chloride has a density of 1.33g/mL greater than water so it will be below layer in which phenol is present.

What is the function of separatory funnel?

Immiscible liquids are separated using a separatory funnel, or sep funnel. Two layers appear in a separatory funnel when two immiscible liquids are added. The lower layer will be made up of the denser solvent. Most halogenated solvents are less dense than water, but most non-halogenated solvents are.

A separating funnel is used by adding the two phases and the mixture to be separated via the top while keeping the stopcock at the bottom closed. After then, the funnel is shut and gently shaken by being inverted several times. If the two solutions are combined too vigorously, emulsions will form.

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- Lead acid batteries used in cars contain a concentrated
solution of sulfuric acid. When these batteries are
recycled, their sulfuric acid is drained and neutralized to
produce water and sodium sulfate. Suggest a compound
that could be used to neutralize sulfuric acid and produce
sodium sulfate. Justify your choice by writing the chemical
equation for the reaction.

Answers

As per the chemical reaction ,sodium hydroxide can be used for neutralization of sulfuric acid as,2 NaOH+H₂SO₄[tex]\rightarrow[/tex]Na₂SO₄ +2 H₂O.

What are chemical reactions?

Chemical reactions are defined as reactions which occur when a substance combines with another substance to form a new substance.Alternatively, when a substance breaks down or decomposes to give new substances it is also considered to be a chemical reaction.

There are several characteristics of chemical reactions like change in color, change in state , change in odor and change in composition . During chemical reaction there is also formation of precipitate an insoluble mass of substance or even evolution of gases.

There are three types of chemical reactions:

1) inorganic reactions

2)organic reactions

3) biochemical reactions

During chemical reactions atoms are rearranged and changes are accompanied by an energy change as new substances are formed.

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Consider the hydrate calcium chloride dihydrate: cacl2 · 2h2o. how many hydrogen atoms are in the compound?

Answers

Consider the hydrate calcium chloride dihydrate hydrogen atoms are in the compound are four

Hydrate calcium chloride dihydrate is the excellent water soluble crystalline calcium sources used compatible with chloride and chloride compounds can conduct electricity when fused or dissolved in water and here given compound is CaCl₂ × 2H₂O

So in that compound the hydrogen atom are four because this compound or this equation is balanced so in that compound four hydrogen atom are present

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Answer:

4

Explanation:

Which of the following provides the best evidence that organ systems in the human body interact with one another

Answers

The best evidence that organ systems in the human body interact with one another is shivering in response to sensing in the cold environment

Organ system is the group of tissue that work together for the overall function of organ and also organ system is the group of organ that work together to perform a specific function and the human organ consist of eleven organ system and that is respiratory, execratory, circulatory, digestive etc and the best evidence that organ systems in the human body interact with one another is shivering in response to sensing in the cold environment because when your muscle and skeletal system are working to help your body increase heat when shivering

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a 0.450 m solution of kcl needs to be prepared through dilution. a 2.00 m stock solution will be added to a 0.250 l volumetric flask and then water will be added to the 0.250 l mark. determine the volume (in ml) of the 2.00 m stock solution of kcl needed to produce this solution.

Answers

Taking into account the definition of dilution, the volume of the 2.00 M stock solution of KCl needed to produce the solution is 56.25 mL.

Dilution

When it is desired to prepare a less concentrated solution from a more concentrated one, it is called dilution. It is accomplished by simply adding more solvent to the solution at the same amount of solute.

The amount of solute does not change, but as more solvent is added, the concentration of the solute decreases, as the volume of the solution increases.

A dilution is mathematically expressed as:

Ci×Vi = Cf×Vf

where

Ci: initial concentrationVi: initial volumeCf: final concentrationVf: final volume

Volume of the stock solution

In this case, you know:

Ci= 2 MVi= ?Cf= 0.450 MVf= 0.250 L

Replacing in the definition of dilution:

2 M× Vi= 0.450 M× 0.250 L

Solving:

Vi= (0.450 M× 0.250 L)÷ 2 M

Vi= 0.05625 L= 56.25 mL (being 1 L= 1000 mL)

In summary, 56.25 mL of stock solution are needed.

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you add 13.90 ml of 0.370 m ba(oh)2(aq) to 45.00 ml of 0.300 m hydrochloric acid, hcl(aq). if necessary use ka and kb values from the equation sheet provided chem iii eqn sheet a. enter the formula of the chemical species predominantly present in solution that will determine the ph. formula h3o preview: h3o (aq) b. what is the ph? 0.848

Answers

The predominant chemical species affecting the pH is H₃O⁺, but the pH value of the resulting solution is actually 1.26.

To calculate the pH value of the resulting solution we need the number of moles of H⁺ ions (n) and the volume of the solution (V). The volume is easy - it is the sum of the volumes of the barium hydroxide solution (13.90 mL = 0.01390 L) and the hydrochloric acid solution (45.00 mL = 0.04500 L)

V(total) = V(Ba(OH)₂) + V(HCl)

V(total) = 0.01390 L + 0.04500 L = 0.05890 L

Now we need to calculate the number of moles of H⁺ (H₃O⁺) ions. The number of moles of H⁺ ions in the HCl solution is:

n(H⁺) = c(HCl) * V(HCl)

n(H⁺) = 0.300 M * 0.04500 L = 0.0135 mol

On the other hand, the number of moles of OH⁻ ions is double the number of moles of barium hydroxide, because 1 mol of barium hydroxide releases 2 moles of OH⁻ ions:

n(OH⁻) = 2 * c(Ba(OH)₂) * V(Ba(OH)₂)

n(OH⁻) = 2 * 0.370 M * 0.01390 L = 0.010286 mol

The number of moles of H⁺ ions is greater than the number of moles of OH⁻ ions, so after the neutralization, we will have an excess of H⁺ ions:

n(H₃O⁺) = n(H⁺) - n(OH⁻)

n(H₃O⁺) = 0.0135 mol - 0.010286 mol = 0.003214 mol

We can now finally calculate the concentration of H₃O⁺ ions in the final solution:

c(H₃O⁺) = n(H₃O⁺) / V(total)

c(H₃O⁺) = 0.003214 mol / 0.05890 L = 0.05457 M

From this, we can find the pH value of the solution:

pH = -log(c(H₃O⁺))

pH = -log(0.05457)

pH = 1.26

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in a buffer containing acetic acid (ch2cooh) and sodium acetate (nach2coo-) at a ph of 5, if the concentration of sodium acetate is 100. mm, what is the concentration of acetic acid?

Answers

By using the Henderson-Hasselbalch equation, we can calculate that the concentration of acetic acid in the given buffer is 57.5 mM.

When calculating the pH value of a buffer system, we use the Henderson-Hasselbalch equation:

[tex]pH = pK_{a} + log\frac{[base]}{[acid]}[/tex]

pKa - the negative logarithm of the acidic constant (for acetic acid, pKa = 4.76)

[base] - concentration of the basic (sodium acetate) component

[acid] - concentration of the acidic (acetic acid, AcOH) component

If we plug the known values (pH = 5; [base] = 100 mM; pKa = 4.76) in the equation we get:

[tex]5 = 4.76 + log\frac{100 mM}{[AcOH]}[/tex]

[tex]log\frac{100 mM}{[AcOH]} = 5-4.76[/tex]

[tex]log\frac{100 mM}{[AcOH]} = 0.24[/tex]

[tex]\frac{100 mM}{[AcOH]}= 10^{0.24}[/tex]

[tex]\frac{100 mM}{[AcOH]}= 1.74[/tex]

[AcOH] = 100 mM / 1.74

[AcOH] = 57.5 mM

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8) There is only one naturally occurring isotope of beryllium, Be-9. Explain why the atomic
mass of this isotope is the same value as the "average atomic mass" for beryllium found
on the periodic table.

Answers

Answer:

The average atomic mass for an element is calculated by summing the masses of the element's isotopes, each multiplied by its natural abundance on Earth. Since beryllium has only one naturally occurring isotope. The average atomic mass of beryllium is the mass of Be-9 isotope multiplied by 100%.

Explanation:

If we weighed a cup of water and a spoonful of pepper separately and then stirred the pepper into the water and weighed the mixture, how do you think the weights would compare? Why? What if we did the same with sugar?

Answers

Answer:

it would be the same weight but it's ith sugar I think it would way more

. Which of the following statements is not correct? A. Density has no units. B. Every measurement has a unit tied to it. C. Physical quantities are properties that can be measured. D. the Kelvin degree is larger than the Celsius degree.

Answers

Answer:

A because density DOES have a unit

Explanation:

What test can reveal the presence of calcite?


Describe some rock formations that are likely to be made of calcium carbonate


help pleasee

Answers

A good test for calcite is the test using acid and a rock formation that contains calcite is limestone.

What is calcite?

We know that rock has to do with a solid mass that contains minerals. We know that many rocks are composed of various kinds of minerals that could be found inside the rocks. One of the minerals that could be found in rock is calcite which is composed of calcium carbonate. The presence of calcite can be tested by that addition of an acid which leads to the effervescence of a colorless odorless gas.

The rock formations that contain calcite are mainly limestone and and are known for their grey or white color.

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Consider the reaction.

2Pb(s)+O2(g)⟶2PbO(s)2Pb(s)+O2⁡(g)⟶2PbO(s)

An excess of oxygen reacts with 451.4 g of lead, forming 341.8g 341.8 g of lead(II) oxide. Calculate the percent yield of the reaction.

percent yield: _________ %

Answers

The percent yield of the reaction with formation of lead oxide  is 70.29%.

What is percent yield?

Percent yield is defined as the ratio of actual yield to the theoretical yield multiplied by 100. If the actual and theoretical yield are same then the percent yield is 100%.If actual yield is less than the theoretical yield then the percent yield is less than 100%.Reason of this condition arising is the incompletion of reaction or loss of sample during recovery process.

In cases where percent yield is over 100% it indicates that more sample is recovered than the predicted amount.This condition arises when there are other simultaneous reactions taking place leading to the formation of product. It can also arise if there is incomplete removal of impurities from the sample .

In the given problem, 2 moles of lead produce 2 moles of lead oxide

That is, 414.4 g lead produces 446.4 g of lead oxide

hence,451.54 g lead will produce 451.4×446.4/414.4=486.251 g which is the theoretical yield

Now by substituting the values in the formula,341.8/486.251 ×100=70.29%

Hence, the percent yield of the reaction is 70.29%.

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Eriq, a chemist, is running tests with four unknown elements. He has found that they all bond the same way, so he knows that they are in the same group on the periodic table of elements.

The table shows other properties that Eriq observed.These four elements are most likely in group

15.
16.
17.
18.

Answers

Answer:

17

Explanation:

br is liquid

cl is gas

and iodide is solid

aqueous ammonia is commercially available at a concentration of 16.0 m. how much of the concentrated solution would you use to prepare 500.0 ml of a 1.90 m solution?

Answers

Volume of 16.0 m aqueous ammonia solution required to prepare 500.0 ml of a 1.90 m solution is 50ml

What is molarity?

Molarity is used to describe the concentration of a solution. Molarity, also called molarity, is the number of moles of solute (dissolved substance) per liter of solution. The unit of molarity is moles per cubic decimeter, written as mol dm⁻³ or simply M. A cubic decimeter is the same as a liter. In many old textbooks you can find concentrations in moles/liter written as mol l⁻¹

Original concentration x initial volume = final concentration x final volume.

We will use the equation (M₁)(V₁) = (M₂)(V₂)

Given,

M₁ = 16.0 m

M₂ = 1.90 m

V₂ = 500.0 ml or 0.5L

So, 16 × V₁ = 1.90 ×  0.5

16 V₁ = 0.9 m

V₁ = [tex]\frac{0.9}{16}[/tex]

V₁ = 0.05L or 50ml

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3. An object that has a volume of 2500 cm³ is dropped into a vat of corn syrup. What is the buoyant force on the object? (The density of corn syrup is 1.38 g/cm³.)​

Answers

Answer:3.381 X 10^(-11)

Explanation:

The formula for buoyant force is F = -Volume*density*gravitational acceleration. Convert volume and density to SI units and then apply them in the formula where gravitational acceleration is 9.8m/s^2. Done

which statement correctly compares the weight and the mass of an object?

Answers

The statement that correctly compares the weight and the mass of an object is as follows: its weight changes based on location but the mass stays the same (option C).

What is weight and mass?

Weight is the force on an object due to the gravitational attraction between it and the Earth. Weight is a function of an object's mass and it's gravitational force.

Mass, on the other hand, is the quantity of matter which a body contains, irrespective of its bulk or volume. It is one of four fundamental properties of matter and is measured in kilograms in the SI system of measurement.

An object's mass does not change, however, its weight is subjective to changes in location. This means that a ball on Earth will weigh differently from a ball in mars.

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a stock solution of silver nitrate (agno3) is prepared by adding 97.364 g of silver nitrate to a 1000.00 ml volumetric flask and it is filled to the line with water. a 79.763 ml aliquote of the stock solution is added to a 200.00 ml volumetric flask and it is filled to the line with water. what is the molarity of the solution in the 200.00 ml flask?

Answers

The molarity of the silver nitrate solution in the 200.00 mL flask is 0.22856 M.

To calculate the molarity of the solution in the 200.00 mL flask, we must need the number of moles present and the volume (200.00 mL = 0.20000 L).

To obtain the number of moles present, we can calculate the mass of AgNO₃ in the 200.00 mL sample and then use the molar mass of silver nitrate (M = 169.87 g/mol) to calculate the number of moles.

So, if there's 97.364 g of silver nitrate in the 1000.00 mL flask, we can use a simple proportion to calculate the mass present in 79.763 mL:

97.364 g : 1000.00 mL = X : 79.763 mL

X = 97.364 g * 79.763 mL / 1000.00 mL = 7.7660 g

This same mass is present in the final 200.00 mL solution, as it is merely diluted. So, we can now calculate the number of moles (n) of silver nitrate:

n = m/M

n = 7.7660 g / 169.86 g/mol

n = 0.045712 mol

Finally, we can use this to calculate the molarity (c) of the final solution:

c = n/V

c = 0.045712 mol / 0.20000 L = 0.22856 M

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what could you do to increase the electric force between to charged particles by a factor of 16

Answers

In other to increase the electric force between two charged particles by a factor of 16, the charged particle is increased by 16.

What is Electric force?

This is referred to as the repulsive or attractive interaction between any two charged bodies and we should note that like poles repel and unlike poles attract.

One of the charged particle has to be increased by 16 for there to be an increase in the electric force between the particles by a factor of 16 and it can seen below:

F1/ F2 = kq1q2/r² / 16kq1q2 / r² where f is force, q is the charge and r is distance between charges.

F1 / F2 = 1/16

F2 = 16F1

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the molar mass of the metal hydroxide m(oh)4 is 118.97 g/mol. what is the molar mass of the sulfide of this metal? provide your answer in decimal notation, rounded to 2 decimal digits (i.e. to the hundredths place).

Answers

The molar mass of the metal Sulfide  is 83.02g/mol.  

The molar mass of Sulfide  is the addition of molar mass of Sulphur with molar mass of given metal which is given by subtract the molar mass of hydroxide from total molar mass of metal hydroxide.

The molar mass of the [tex]M(OH)_{4}[/tex] =118.97g/mol

Molar mass of Oxygen = 15.999g/mol

Molar mass of Hydrogen= 1.008g/mol

Therefore:

molar mass of [tex]M(OH)_{4}[/tex]= (molar mass of M) +4(molar mass of oxygen + molar mass of hydrogen)

118.97=(molar mass of M)+(15.999 x4)+(1.008x4)

118.97=(molar mass of M)+(63.996+4.032)

118.97-68.028=molar mass of metal(M)

molar mass of Metal=50.942 g/mol (that is Vanadium)

Molar mass of metal + molar mass of Sulphur to give metal sulfide.

50.942+32.06=83.02g/mol

Hence,  the molar mass of  Vanadium Sulfide([tex]V_{2} S_{5}[/tex] ) is 83.02g/mol.  

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if 25.0 ml of 0.451 m naoh solution is titrated with 0.253 m h2so4, the flask at the endpoint will contain (besides the indicator phenolphthalein) as the principal components: a. sodium hydroxide, sulfuric acid, and water b. dissolved sodium sulfate and water c. sodium hydroxide, sodium sulfate, and water d. dissolved sodium sulfate, sulfuric acid, and water calculate how much h2so4 acid is required to neutralize naoh.

Answers

The flask at the endpoint will contain (besides the indicator phenolphthalein) the principal component is dissolved sodium sulfate and water.

The amount of sulfuric acid needed to neutralize the sodium hydroxide is 0.010 moles.

The endpoint, both the reactants will be exactly equal to neutralize each other. The flask will contain [tex]Na_{2} So_{4}[/tex] and water. [tex]Na_{2} So_{4}[/tex] is highly soluble in water and so it will exist as a solution in water. No precipitate will be formed.

The endpoint of the titration of a strong base and strong acid is where the base is just neutralized by the acid. At the endpoint, neither the base nor the acid is in excess.

The reaction of NaOH with [tex]H_{2} So_{4}[/tex] is

2NaOH(aq) + [tex]H_{2} So_{4}[/tex] (aq) -------> [tex]Na_{2} So_{4}[/tex] (aq) + 2[tex]H_{2} 0[/tex](l)

A solution is any combination of one or more solutes that have dissolved in a solvent. Remember that the solvent has the maximum concentration of any chemical. There are many different types of solutions. For instance, a solute might be a gas, a liquid, or a solid.

A solution is made up of both a solute and a solvent. The solvent, which dissolves the solute, makes up the majority of the solution. There are many useful uses for liquids' capacity to dissolve other liquids or solids. Chemists can separate and purify materials and perform chemical analysis by taking advantage of variations in solubility.

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What do all waves have in common?
you can always see them
They carry energy
They absorb light
They do not carry energy

Answers

Answer:

I think it's carry energy, but I'm not sure

They carry energy is the right

Which of the following compounds has the general formula X3Y2?

Answers

Mg2N3  compound having general formula X2Y2  it having cation as +3 charge and bonds ionically with group 15 in a 2:3 ratio.

What is compound?

When two or more elements combine chemically  in a specific mass ratio, the resulting product is called a compound. Compounds can be defined as substances consisting of two or more different types of elements in a fixed ratio of their atoms.

A compound is one where  different types of atoms have joined together to form molecules. For example, water is a compound. The chemical name of water is H2O because it contains two hydrogen atoms and one oxygen atom chemically bonded together.

To learn more about compound ,refer;

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