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vivado [14]
2 years ago
5

Select all the correct answers.

Chemistry
1 answer:
pantera1 [17]2 years ago
6 0

Answer:

The correct answer is the charges of the positive and negative copper ions cancel each other out.

Explanation:

A copper metal having no net charge means that it is a neutral atom. A neutral atom means that total number of protons is equal to the total number of electrons.

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Which statement explains how the Sun influences movement in the Earth's atmosphere?
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Correct Answer: The Sun heats the Earth unevenly; this heating pattern then causes convection currents in the atmosphere.
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Which is an example of a natural disaster limiting population growth?
fenix001 [56]

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A hurricane wiping out a new species of flower in the tropical rain forests of Brazil.

Explanation:

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In which layer of Earth’s interior does convection occur?
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2 years ago
A sample of gas contains 0.1800 mol of CO(g) and 0.1800 mol of NO(g) and occupies a volume of 23.2 L. The following reaction tak
baherus [9]

Answer:

The volume of the sample is 17.4L

Explanation:

The reaction that occurs requires the same amount of CO and NO. As the moles added of both reactants are the same you don't have any limiting reactant. The only thing we need is the reaction where 4 moles of gases (2mol CO + 2mol NO) produce 3 moles of gases (2mol CO2 + 1mol N2). The moles produced are:

0.1800mol + 0.1800mol reactants =

0.3600mol reactant * (3mol products / 4mol reactants) = 0.2700 moles products.

Using Avogadro's law (States the moles of a gas are directly proportional to its pressure under constant temperature and pressure) we can find the volume of the products:

V1n2 = V2n1

<em>Where V is volume and n moles of 1, initial state and 2, final state of the gas</em>

Replacing:

V1 = 23.2L

n2 = 0.2700 moles

V2 = ??

n1 = 0.3600 moles

23.2L*0.2700mol = V2*0.3600moles

17.4L = V2

<h3>The volume of the sample is 17.4L</h3>
8 0
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2. Mitosis is great for repair and damage. TRUE OR FALSE
inn [45]

Answer:

TRUE

HOPE THIS HELPS!

Explanation:

3 0
2 years ago
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