Metals will always form _________________ ions, called _______________.

Melting and boiling points of a pure liquid are intensive physical quantities whereas mass and volume are fundamental physical quantities.

The typical definition of the melting point is the temperature at which a substance transforms from a solid to a liquid.

The temperature at which a liquid under atmospheric pressure changes from a solid to a liquid is known as its melting point. Here, both the liquid and solid phases coexist in equal amounts. The substance's melting point is listed under standard pressure, although it varies with pressure as well.

The temperature at which a liquid's vapour pressure equals the surrounding atmosphere is known as the boiling point of the liquid. This temperature causes the liquid to become a vapour.

The boiling point of the liquid is influenced by the atmospheric pressure. When a liquid is at high pressure, its boiling point is higher than when it is at atmospheric pressure. Different liquids have variable boiling points at a specific pressure. The standard boiling point of a liquid was established by IUPAC in 1982 as the temperature at which a liquid starts to boil at a pressure of one bar.

Learn more about melting point here :

brainly.com/question/478202

#SPJ13

1. The number of moles of H in 5 moles of C₂H₄O is 20 moles

2. The number of atoms of H in 5 moles of C₂H₄O is 1.20×10²⁵ atoms

1. How to determine the number of mole

The number of moles of H in 5 moles of C₂H₄O can be obtained as follow:

1 mole of C₂H₄O contains 4 moles of H

Therefore,

5 moles of C₂H₄O will contain = 5 × 4 = 20 moles of H

Thus, the number of moles of H is 20 moles

2. How to determine the number of atoms

We know from the calculation made above that 20 moles of H is present in 5 moles of C₂H₄O. Thus, we can obtain the number of atoms as follow:

From Avogadro's hypothesis,

1 mole of H = 6.02×10²³ atoms

Therefore,

20 moles of H = (20 moles × 6.02×10²³ atoms) / 1 mole

20 moles of H = 1.20×10²⁵ atoms

Thus, the number of atoms of H present is 1.20×10²⁵ atoms

Learn more about number of atoms:

https://brainly.com/question/20712650

#SPJ1

In this question, we need to determine what will be the nuclear equation for the Beta decay of Lead - 210.

Beta decay is a type of radioactive decay in which we will have either a neutron becoming a proton, this will be called Beta-minus decay or a proton becoming a neutron, this will be called a Beta-plus decay

In the case of Pb-210, we will have a Beta-minus decay, and one neutron will become a proton:

210/82 Pb ---> 210/83 Bi + electron

Lead - 210 will become Bismuth - 210

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

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:

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

Learn more about periodic table at: https://brainly.com/question/11155928

#SPJ1

What is it you are making exactly? It is going to be for a recipe of some sort, like a beverage or food? If you could sort of expand on what the purpose is for, I think I may be able to help you find the best method for the extraction.

Answer:

145,000 meters

Explanation:

1 kilometer = 1000 meter

145 kilometer = 145 times 1000 meters

so:

145 × 1000 = 145,000 meters

The empirical formula of the compound is C3H4O as the mole ratio is 3 : 4 : 1

1) Mass of carbon (C) in 3.190 g of carbon dioxide (CO₂)

atomic mass of C: 12.0107 g/mol

molar mass of CO₂: 44.01 g/mol

Setting up proportion as:

12.0107 g of C / 44.01 g of CO₂ = x / 3.190 g of CO₂

x  = 0.87057 g of C

2) Mass of hydrogen (H) in 0.9360 g of water (H₂O)

atomic mass of H: 1.00784 g/mol

molar mass of H₂O: 18.01528 g/mol

Setting up proportion as:

2 × 1.00784 g of H / 18.01528 g of H₂O = x / 0.9360 g of H₂O

x = 0.10472 g of H

3) Mass of oxygen (O) in 1.0857 g of pure sample

Mass of O = mass of pure sample - mass of C - mass of H

Mass of O  = 0.38397 g O ≈ 0.3840 g

4) Mole calculations

C:  0.87057  g / 12.0107 g/mol = 0.07248 mol

H: 0.10472 g / 1.00784 g/mol = 0.10390 mol

O: 0.3840 g / 15.999 g/mol = 0.02400 mol

So, to find empirical formula the mole ratios are:

C: 3

H:  4

O:  1

Thus the mole ratio is 3 : 4 : 1, and the empirical formula is: C3 H4 O

Learn more about empirical formula here:

https://brainly.com/question/14044066

#SPJ4

The classification of the given processes as either physical changes (PC), chemical changes (CC), physical properties (PP), and chemical properties (CP): is as follows:

Physical changes are changes that occur in a substance that are easily reversible and only affect the physical properties of that substance.

In physical changes, no new substances are formed.

Some physical properties that may change in physical changes are color, taste, volume, mass, physical state, etc.

Chemical changes are changes that occur in a substance that are not easily reversible and which affect the chemical properties of that substance.

In chemical changes, new substances are formed.

Some chemical properties that may change in physical changes are oxidation state, combustibility, etc.

Learn more about chemical and physical changes at: https://brainly.com/question/11370755

#SPJ1

The electron configuration for a neutral atom of chlorine is 1s² 2s² 2p⁶ 3s² 3p⁵.

Atomic number of Chlorine  is 17. to write the electronic configuration of chlorine we need to know the number of electrons in chlorine atom. the atomic number of chlorine is 17 therefore there are 17 electrons. the first two electron enter in 1s since s can hold only 2 electrons then next two electron will enter in 2s . the next six electrons will enter in 2p since p can hold six electrons . and next two electron in 3s now reaming 5 will enter in 3p. therefore the  electron configuration for a neutral atom of chlorine is 1s² 2s² 2p⁶ 3s² 3p⁵.

Thus, the  electron configuration for a neutral atom of chlorine is 1s² 2s² 2p⁶ 3s² 3p⁵

To learn more about electronic configuration here

https://brainly.com/question/14283892

#SPJ1

Answer: The mass percent of copper in copper chloride is 47.23 %.

Chlorine has 17 protons, 17 electrons and 18 neutrons. The atomic number is 17 and the mass number is 35.

The given element is Chlorine with an atomic number of 17 and a mass number of 35. The subscript serves as the atomic number while the superscript is the mass number.

The proton number is equal to the atomic number and electron number of a chlorine atom. Therefore;

Proton number = electron number = 17

For the neutron number

Neutron number is the difference between the mass number and the proton number;

Neutron number = Mass number - Proton number

Neutron number = 35 - 17 =18

Hence there are 18 neutron numbers in a chlorine atom

The final pressure of the ideal gas is 23.47 atm.

We need to know about the ideal gas theory to solve this problem. The ideal gas is assumed that there is no interaction between particles in a gas. It can be determined by the equation

P . V = n . R . T

where P is pressure, V is volume, n is the number of moles gas, R is the ideal gas constant (8.31 J/mol.K) and T is temperature.

From the question above, we know that

V1 = 120 L

P1 = 18 atm

T1 = 310 K

V2 = 95 L

T2 = 320 K

When the initial and final gas is the same, we can use the ratio of the ideal gas as

(P2 . V2) / (P1 . V1) = T2 / T1

(P2 . 95) / (18 . 120) = 320 / 310

P2 = 23.47 atm

Find more on ideal gas at: https://brainly.com/question/25290815

#SPJ4

The element that forms a yellowish gas, often used as a disinfectant, and forms a nasty gas with ammonia would be chlorine.

Chlorine is an element with a valence electron of 7. It forms a greenish-yellow gas that is 2 to 5 times denser than air. The element belongs to a group of elements on the periodic table known as halogen.

Chlorine is used as a disinfectant. It is utilized in the treatment of water for domestic use. It has the ability to kill harmful microbes off surfaces. It is also used in the manufacturing of textile products, paper bleaching, and several other industrial uses.

Chemically, chlorine is highly reactive. It reacts with ammonia to form a toxic gas known as chloramine. The gas affects the throat, lungs, and eyes of humans and in high doses, can cause outright death.

Thus, the element in question that form yellowish gas, is used as a disinfectant, and forms nasty gas with ammonia would be chlorine.

More on chlorine can be found here: https://brainly.com/question/14962130

#SPJ1

Answer:

CH3

Explanation:

Hope this helps :)

The percent composition of (NH₄)₂CO₃ is 99.999 % ≈ 100 %.

To calculate percent composition of the elements in a compound,

the molar mass of element is divided by the molar mass of the compound and then, it is multiplied by 100.

We know that,

Molar mass of (NH₄)₂CO₃ is 96.086 g/mol.

Molar mass of each element of compound is-

Nitrogen = 2 × 14.007 g/mol = 28.014 g/mol

Hydrogen = 8 × 1.008 g/mol = 8.064 g/mol

Carbon = 1 × 12.011 g/mol = 12.011 g/mol

Oxygen = 3 × 15.999 g/mol = 47.997 g/mol

Now,

We will calculate the percent composition -

% composition of nitrogen = 28.014 g/mol × 100 = 29.155%

                                               96.086 g/mol

% composition of hydrogen = 8.064 g/mol × 100 = 8.392%

                                                96.086 g/mol

% composition of carbon = 12.011 g/mol × 100 = 12.500%

                                            96.086 g/mol

% composition of oxygen = 47.997 g/mol × 100 = 49.952 %

                                             96.086 g/mol

We will add the percentage to calculate % composition of (NH₄)₂CO₃ -

29.155 % + 8.392 % + 12.500 % + 49.952 % = 99.999% ≈ 100 %

Therefore, % composition is 99.999 % ≈ 100 %

To learn more about composition,

brainly.com/question/14782870

#SPJ1

The volume at which the pH can be used to determine the pKa of the acid is 7.40 ml if the equivalence point occurred at 14.81 ml of added sodium hydroxide.

The weak acid and the conjugate base will have an equal number of moles at the half-equivalence point as the number of moles of sodium hydroxide will neutralize half of the number of moles of the weak acid which will then produce more conjugate base.

The chemical reaction can be given as;

HA = (H^+) + A^-

Calculation of pKa:

pH = pKa + log[A^-]/[HA]

At half equivalence point, pH = pKa

As, ka = 10^-pka

Therefore, ka = 10^-pH

Volume is given which is 14.81 ml. Therefore, the volume that is used to determine the pKa of the acid can be calculated as follows;

14.81/2 = 7.40 ml

Therefore the volume used to determine the pKa of the acid is calculated to be 7.40 ml

To learn more about equivalence point, click here:

https://brainly.com/question/24584140

#SPJ4

After calculating the percent error and rounding it to two decimal places, the result obtained is 18.20%.

To calculate the percent error we need to calculate the absolute error first. This is done by subtracting the actual value (1000 mg) from the measured value (0.818 g = 818 mg):

818 mg - 1000 mg = -182 mg

We then divide the absolute value of that difference (182 mg) by the actual value (1000 mg).

182 mg / 1000 mg = 0.182

This result is then multiplied by 100 percent and rounded to two decimal places:

0.182 * 100% = 18.20%

You can learn more about percent error here:

brainly.com/question/3670306

#SPJ4

Electrons from fadh2 are transferred to succinate reductase and then to a small organic molecule called Ubiquinone.

Electron Transport chain?

The electron transport chain main job is to produce an electrochemical gradient. It propels the production of ATP during photosynthesis and cellular respiration in mitochondria and chloroplasts, respectively. Cellular respiration uses it.

Ubiquinone transfer electrons to Complex III from Complexes I and II as well as from other mitochondrial dehydrogenases by acting as an electron transporter in the mitochondrial respiratory chain.

To know more about electron transport chain visit the link:

https://brainly.com/question/24372542?referrer=searchResults

#SPJ4

To make a 100 ml solution of 0.8 m from a 2.7 m concentrated stock solution we have to take a volume of: 30 ml of the concentrated solution

To solve this problem, the formula and the procedure that we have to use is:

c1 * v1 = c2 * v2

Where:

Information about the problem:

Applying the dissolution of concentrations formula and clearing the volume of the concentrated solution (v1) we get:

c1 * v1 = c2 * v2

v1 = (c2 * v2)/ c1

v1 = (0.8 m * 100 ml)/ 2.7 m

v1= 29.6 ml

By rounding the volume to a whole integer value we have:

v1= 30 ml

In chemistry a solution is known as a homogeneous mixture of two or more components called:

Learn more about chemical solution at: brainly.com/question/13182946

#SPJ4

Answer:

1H2+1O2—>H2O2

Explanation:

Use the integer+1

Given the symbol Cl-37, the element is Cl, but there is no information about its charge. When this is like that, it is implicit it is an atom, that is, it is neutral, its charge is 0.

The number indicates is the mass number, so its mass is 37.

So, mass is 37 and charge is 0.

Answer:

[tex]CF_{4}[/tex]

Explanation:

See attached worksheet

Answer:

There are 400 meters in a hectometer?

Explanation:

Answer:

there are 400 meters in a hectometer?

Explanation:

Glyceryl tributyrate will react with 3 mol of water and form a glycerol and 3 mol of carboxylic acid.

The reaction is exothermic as it involves a bond-forming process

when the liquids are mixed temperature of the reaction between the mixture increases.

There are small and large clusters in the mixture

The exothermic reaction involves the formation of new bonds which involves a combination of the bonds to form a new compound in our case water has hydroxy ions that bond with those of ethanol.

Mixing ethanol and water in volumetric glassware reduces the volume and increases the temperature.

The numerical example

Fill two 250 mL graduated cylinders to the line with water and ethanol pure temperature sensor shows both at room temperature. Next, move the temperature probe to an empty 500 mL graduated cylinder and pour the contents of the two smaller cylinders simultaneously and mix well.

The temperature of the mixture will rise by about 8 °C and the volume will decrease to 480 this indicates that the reaction is exothermic as the temperature rises and volume reduces

yes, clusters are present as ethanol falls between the spaces left by water as it has small molecules than that of water.

To learn more about ethanol and water reactions see https://brainly.com/question/1206318?referrer=searchResults:

#SJP4

The explanation of Figures A and B to do or do not show work being done is given below:

He is using energy to lift the books in picture A, which takes both force and motion to do so. In figure B, the books move along with him, and as such only effort is used to carry them. Hence, he is doing work only in Figure A.

The examples are:

The sum of the displacement and the component of the applied force of the object in the displacement direction is the work done by a force. Work is accomplished when we push a block with some force; the body moves more quickly.

Work completed is noted as an object must be subjected to a force and move in the direction of the force in order for work to be done on it.

Therefore, It should be converted to energy in order to move an object. Energy can be transferred by the use of force. This amount of energy that is delivered when a force is used to move an object is known as work that is done.

Learn more about work done from

https://brainly.com/question/23121566
#SPJ1

Answer:

The attraction is a hydrogen bonding.

Explanation:

Based on the information on intermolecular forces, when a Hydrogen is specifically bonded with a Nitrogen, Oxygen or Fluorine, their bonding is called a hydrogen bond.

The given statement exists as false. The temperature at which a liquid's vapor pressure equals the pressure of the gas above it exists comprehended as the boiling point of the liquid.

The temperature at which a liquid's vapor pressure equals the pressure around it and the liquid transforms into a vapor is known as the boiling point of a substance. A liquid's boiling point varies depending on the atmospheric pressure in the area.

The temperature at which a liquid's vapor pressure equals the pressure of the gas above it exists comprehended as the boiling point of the liquid. The temperature at which a liquid's vapor pressure equals one atmosphere is considered the liquid's typical boiling point (760 torr).

The element with the lowest temperature at which an element would smolder is helium, and the element with the highest temperature is tungsten. The melting point is measured in degrees Celsius (C).

To learn more about boiling point refer to:

https://brainly.com/question/40140

#SPJ4

Magnetic property of iron will help in seperating iron from rest of the materials.

Iron is a metal and have magnetic property. Magnetic property is property of metal in which metal has the attraction power to attract other metal. Iron is ferromagnetic but it requires certain temperature and certain conditions. It occurs below 770°C, which is curie temperature.

There are 5 magnetic properties

 types of magnetic materials

Diamagnetic Material,Paramagnetic Materials,Ferromagnetic Materials,Antiferromagnetic Materials,Ferrimagnetic Materials.

To know more about magnetic property visit

https://brainly.com/question/4242549

#SPJ4