Determine what’s wrong with these electronic configurations

Answer:

He has a deep respect for the horse,so he treats him with care

Answer:

It's C

Explanation:

Good luck on the test.

Answer:

As Per Given Information

Mass of Car 4000 Kg

Acceleration of car 20m/s²

we have to find the force required to make the car car accelerate at given magnitude .

Using Formulae

On Putting the value we obtain

↝ Force = 4000 × 20

↝ Force = 80000 N

↝ Force = 80KN

So, the force required to maintain the given acceleration is 80 KiloNewton .

Answer:

Organisms within each group gain energy by feeding on the organisms in the group below them on the food chain. The top predator of a food chain is the carnivore within the community that does not have any predators of its own. When the top predator dies, their remains are broken down by decomposers—bacteria and fungi.

Explanation:

Answer:

If it reflects all light, it looks white. Color can help identify a material and, while it is a physical property, it can be used together with chemical experiments when the experiments produce a known material with a specific color.

Explanation:

The ability to reflect light is the inherent and fundamental property of that substance.

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Answer:

When meteoroids enter Earth’s atmosphere (or that of another planet, like Mars) at high speed and burn up, the fireballs or “shooting stars” are called meteors. When a meteoroid survives a trip through the atmosphere and hits the ground, it’s called a meteorite. Go farther.

Explanation:

Explanation:

Itenerary for 12 day Eastern Cape

if the scientist finds anything that does not match, they have to carry out further tests

it can guide the consumer's judgement purchase decision on too gently on what the believe the product may contain.

Maybe if the scientist finds anything that does not match, they have to carry out further tests. it can guide the consumer's judgment purchase decision too gently on what they believe the product may contain.

Further tests: If you have been referred to a specialist, there are several tests they might do. Colposcopy: A colposcopy is an examination of your cervix. The specialist uses a colposcope, which looks like binoculars on the stand and to get a magnified view of your cervix.

How does a color detective work in chromatography?

Chromatography: can Be a Color Detective. As it does then, it takes part of the mixture with this. Different molecules run up the paper at different rates. As the result, components of the solution separate and, in this case, become visible as stripes of the color on the chromatography paper.

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Answer:

Acids react with most metals.

When an acid reacts with a metal, the products are a salt and hydrogen.

This is the general word equation for the reaction: metal + acid → salt + hydrogen

Explanation:

The ideal gas equation states that the volume is directly proportional to the moles and temperature but inversely to pressure. The volume required is 1.25 L.

An ideal gas is the hypothetical gas equation that depicts the relation of the temperature, pressure, volume and moles of the substance of the gas.  It is given as,

[tex]\rm PV = nRT[/tex]

Where,

The pressure of hydrogen gas (P) = 1 atm

The volume of hydrogen gas (V) = 35.2L

The temperature of hydrogen gas (T) = 298 K

Gas constant (R) = 0.0821 L. atm. per mol. per K

Substituting values in the equation,

[tex]\begin{aligned}\rm n &= \rm \dfrac{PV}{RT}\\\\&= \dfrac{35.2\times 1}{0.0821\times 298}\\\\&= 1.438\;\rm moles\end{aligned}[/tex]

The balanced chemical reaction can be shown as,

[tex]\rm 2HCl + Ca \rightarrow H_{2} + CaCl_{2}[/tex]

From the reaction, it can be deduced that, 2 moles of hydrochloric acid = 1 mole of hydrogen gas.

So, 1.438 moles of hydrogen molecules will produce 2.876 moles of HCl.

The volume of HCl can be calculated as,

[tex]\begin{aligned}\rm Volume &= \rm \dfrac{moles}{Molarity}\\\\&= \dfrac{2.876}{2.3}\\\\&= 1.25\end{aligned}[/tex]

Therefore, option D. 1.25 L is the volume of the hydrochloric acid.

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This problem is providing the mass of potassium nitrate at 70. °C and asks for the amount of water necessary to completely dissolve it. At the end, the answer turns out to be 26 g of water.

In chemistry, we define solubility as the maximum amount of solute one can dissolve is an specific amount of solvent, at a determined temperature, without getting any trace of precipitate.

In such a way, with a solubility chart, one can see that potassium nitrate has a solubility of about 138 g in 100 g of water at 70. °C, which means we can compute the amount of water dissolving 36 g of this salt with the following relationship:

[tex]x=\frac{36gKNO_3*100gH_2O}{138gKNO_3} \\\\x=26gH_2O[/tex]

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Answer:

In Type 1 cations, the compounds are named after their parent atom. Type 2 binary compounds the cation have a Roman numeral that indicates the charge as well as the name of its parent atom.

Answer:

low, when humidity is low, the chance of precipitation is high.

(so the answer is low :)

Explanation:

Answer:

It's important that we understand how the climate is changing so that we can prepare for the future. Studying the climate helps us predict how much rain the next winter might bring, or how far sea levels will rise due to warmer sea temperatures.

Weather is the state of the atmosphere at any given time and place.

Climate is the long-term average of the weather in a given place

Weather refers to short-term atmospheric conditions while climate is the weather of a specific region averaged for a long period.

Due to various reasons like different types of pollution and industrialization today the average temperature of the earth has begun to rise as a result several consequences are being faced by humans, one of which is climate change.

As the average temperature of the earth has begun to rise due to heavy industrialization, this is known as global warming. As a consequence, We face climate change in the terms of glacier meltdowns, irregular rainfall, and so on.

It is important to know about climate change because, at this point, our generation can reduce its effects of it and save future generations of the earth from being destroyed. If the temperature of the earth continues to rise, soon the plant will become inhabitable, and the entire human species will get vanished from the planet.

So, it is important for the current generation to know about the climate change and take steps in accordance with it.

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Answer:

im not completely sure what you're asking here, but if the question is "are the way elements arranged important to daily life" the answer is yes. elements make up everything. for example, we couldn't survive without water, which is H2O.

Explanation:

Answer:

3. (a) more dense (b) sinks to the bottom

4. (a) less dense (b) rises above

Explanation:

To understand this, first you need to know what density is. Density is the quantity of mass per unit. If something is dense it has many molecules per unit of volume. If something is not so dense it has few molecules per unit of volume.

Cold water is close to becoming ice. In ice (solid), the molecules are compacted very tightly, therefore there are more molecules per unit of volume. This means that ice is very dense. In cold water, the molecules are close but not as close as in ice. This means that cold water is dense.

Hot water is close to becoming a water vapour. In water vapour (gas) the molecules are spaced very far apart and move around freely. They have lots of energy so they vibrate and move around a lot. There are less molecules per unit of volume in water vapour. This means that water vapour is not dense. In hot water, the molecules are not so far apart as the molecules in water vapour. This means that hot water is not so dense. But it is still considerably denser.

Salt water has two different types of molecules. The salt molecules like to cluster around the water molecules very close together. This makes salt water more dense than just plain water (freshwater).

Answer:

Explanation:

Step 1: calculate  the moles  of N2O3

moles= mass  N2O3 /molar mass N2O3

molar mass of N2O3 = (14  x2) +( 16 x3) =76 g/mol

moles of  N2O3  = 160 g/ 76 g/mol = 2.105  moles

Step 2:  from the  moles of N2O3 find the moles of Oxygen

=moles of N2O3   x number of oxygen atoms in N2O3( 3)

= 3 x 2.105  =6.315 moles

Step 3:use  the Avogadro's  law to calculate the atoms of oxygen

that is according to Avogadro's  law  1 mole =   6.02 x10 ^23 atoms

                                                              6.315 moles= ? atoms

={ (6.315 moles x 6.02 x10 ^23 atoms) / 1 mole}  =3.80  x10^24 atoms

Answer:

A is the correct ans

Explanation:

Atmospheric oxygen is closely linked to the carbon cycle through the process of photosynthesis and respiration.

During photosynthesis, plants and other photosynthetic organisms use carbon dioxide (CO₂) from the atmosphere, along with sunlight and water, to produce glucose (C₆H₁₂O₆) and oxygen (O₂) as a byproduct. This process removes carbon dioxide from the atmosphere and releases oxygen, contributing to the oxygen content in the atmosphere.

On the other hand, during respiration, organisms, including plants, animals, and microorganisms, use oxygen from the atmosphere to break down glucose and release carbon dioxide as a waste product. This process releases carbon dioxide into the atmosphere and consumes oxygen.

Hence, the atmospheric oxygen is linked to the carbon cycle.

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A carbon iota can bond with four other iotas and is just like the four-hole wheel, whereas an oxygen iota, which can bond only to two, is just like the two-hole wheel.

Each element tries to achieve stability by forming a noble gas configuration (2 or 8 valence electrons)

Carbon has 4 valence electrons, achieving stability requires 4 more electrons

Hydrogen has 1 valence electron, achieving stability requires 1 more electron

Carbon and hydrogen bond covalently by sharing their electrons so that they become stable (carbon binds 4 hydrogens) to form CH₄ (methane)

0.8

bcus the first circuit had 0.4 current so if we added another one will add 0.4 so it will be 0.8

u can ask ur teacher or friends

Answer:The kinetic-molecular theory of gases assumes that ideal gas molecules (1) are constantly moving; (2) have negligible volume; (3) have negligible intermolecular forces; (4) undergo perfectly elastic collisions; and (5) have an average kinetic energy proportional to the ideal gas's absolute temperature.

Explanation:

Answer:

0.011 moles

Explanation:

There are about 6.02*10^23 atoms in a mole, so in the given sample, there are

[tex] \frac{7.01 \times {10}^{21} }{6.02 \times {10}^{23} } [/tex]

which is about 0.011 moles.

The correct coefficients for the chemical reaction between hydrazine and hydrogen peroxide is 1, 2, 1, 4 (option B).

Coefficients in a chemical reaction are numbers placed in front of formulas to balance equations.

A chemical equation is balanced when the number of atoms of each element on both sides of the equation are the same.

According to this question, hydrazine reacts with hydrogen peroxide to form nitrogen gas and water as follows:

N₂H₄ + 2H₂O₂ → N₂ + 4H₂O

As observed in the above chemical equation, the correct coefficients for the chemical reaction from left to right is 1, 2, 1, 4.

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Answer:

Explanation

7 tonnes-8.5 ammonia

1 ton will be 8.5/7=1.21

we now know what 1 ton of nitrogen is equal to

so now,34/28 that is equal to 1.21

1.21=1.21

So the answer would be C. 28 tonnes

Thanks!

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The molecular formula is the representation of the number of atoms and the chemical species of the elements. The molecular formula of the compound is [tex]\rm C_{3}H_{8}O_{1}.[/tex]

A molecular formula depicts the chemical symbols of the atoms of the elements with the subscripts of the number of atoms present in the compound or the molecule.

Given,

Molecular weight of the compound = 60.10 amu

Empirical formula = [tex]\rm C_{3}H_{8}O[/tex]

Molar mass of carbon = 12.01 g/mole

Molar mass of oxygen = 15.99 g/mole

Molar mass of hydrogen = 1.01 g/mole

Calculate the empirical mass as:

[tex]\begin{aligned}\text{Empirical mass of}\; \rm C_{3}H_{8}O &= (3 \times 12.01)+(8 \times 1.01)+(1\times 15.99)\\\\&= 60.1\end{aligned}[/tex]

The molecular formula can be calculated as,

[tex]\begin{aligned}\text{ Molecular formula} &=\dfrac{\text{Molecular weight}}{\text{Empirical mass}}\\\\&= \dfrac{60.10}{60.1}\\\\&= 1\end{aligned}[/tex]

The molecular formula of the compound can be given by multiplying the subscripts of the empirical formula by 1.

Thus, the molecular formula of the compound is [tex]\rm C_{3}H_{8}O_{1}.[/tex]

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Espanola so hence 5000 sernda 50 multiplias 10

The equation that represents the second ionization energy of nickel is [tex]\rm Ni+ (g) \rightarrow Ni^2^+ (g) + e-.[/tex]

The energy needed to free the outermost, or least bound, an electron from an element's 1+ ion is known as the second ionization energy.

The second ionization energy of an element is usually greater than the first because positive charge more strongly attracts electrons than negative charge.

The chemical equation is the representation of the chemical reaction. The left side of the substance and compound is the reactant and the right side of the substance is the product.

Nickel is a chemical element. Its chemical symbol is Ni. Its atomic number is 28. It's a silvery luster metal.

Therefore, the equation is [tex]\rm Ni+ (g) \rightarrow Ni^2^+ (g) + e-.[/tex]

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Answer:

Both ethylene and acetylene are hydrocarbons but the former has a carbon to carbon double bond while the latter has a carbon to carbon triple bond.

Both organic compounds are referred to as hydrocarbons.

They are also both unsaturated.

Ethylene contains a C-C double bond and belongs to the alkene group.

Acetylene contains a C-C triple bond and belongs to the alkyne group.

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