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MakcuM [25]
3 years ago
12

An electron in a hydrogen atom moves from level 3 to level 1. In a second hydrogen atom, an electron drops from level 2 to level

1. Which statement describes the most likely result?
A-The first atom emits light with more energy.
B-The second atom emits light with more energy.
C-The first and second atoms absorb energy without emitting light.
D-The first and second atoms emit light with the same amount of energy.
Chemistry
2 answers:
Simora [160]3 years ago
5 0
The most appropriate answer is B ! as the wavelength of the first one is large and the second on is small , so energy of the first one will be lesser than the second one !
topjm [15]3 years ago
4 0
I think the answer that you are looking for is B but im not a 100% sure

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eimsori [14]

Answer:

As the kinetic energy of the gaseous solute increases, its molecules have a greater tendency to escape the attraction of the solvent molecules and return to the gas phase. Therefore, the solubility of a gas decreases as the temperature increases.

Explanation:

As the kinetic energy of the gaseous solute increases, its molecules have a greater tendency to escape the attraction of the solvent molecules and return to the gas phase. Therefore, the solubility of a gas decreases as the temperature increases

3 0
3 years ago
3) The mass of a piece silver is 10.5 g. If a sample of pure silver has a volume of 13 cm3, what is the
lakkis [162]

Answer:

<h3>The answer is 0.81 g/cm³</h3>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume} \\

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volume = 13 cm³

We have

density =  \frac{10.5}{13}  \\  = 0.8076923...

We have the final answer as

<h3>0.81 g/cm³</h3>

Hope this helps you

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3 years ago
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How many atom of oxygen are in 2mole of O2​
GenaCL600 [577]

Answer:

12.044  × 10²³ atoms of oxygen

Explanation:

Given data:

Number of atoms of oxygen = ?

Moles of oxygen = 2 mol

Solution:

Avogadro number:

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.  The number 6.022 × 10²³ is called Avogadro number.

1 mole = 6.022 × 10²³ atoms of oxygen

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The neutron was not discovered until 1932, more than thre
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Answer:

<em>Correct option is D) The neutron has a neutral charge, which made it impossible to discover using  previous experiments with positive and negative charges.</em>

Explanation:

The protons are the positively charged particles of an atom. The electrons are the negatively charged particles of an atom. As both the particles carry some kind of charge i.e either positive or negative, hence their discovery was easier.

The neutrons are the part of an atom which are neutral and do not carry any charge. Hence, their discovery took a more longer time as compared to the discovery of electrons and protons.

7 0
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AnnyKZ [126]

Answer:

Because our lungs needs oxygen

Explanation:

Carbon dioxide is what we breathe out

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