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3 years ago

7. True or false. Where air masses collide, weather changes

Chemistry

1 answer:

ella [17]3 years ago

8 0

Answer:true

Explanation:

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The atomic nucleus contains?

ycow [4]

The nucleus, that dense central core of the atom, contains both protons and neutrons. Electrons are outside the nucleus in energy levels. Protons have a positive charge,neutrons have no charge, and electrons have a negative charge. A neutral atom contains equal numbers of protons and electrons.

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3 years ago

HELP PLS!

olya-2409 [2.1K]

I have the same question right now and i think that it is D

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3 years ago

What type of solution is formed when steam from boiling water evaporates into the air

Hoochie [10]

That specific kind is called gas.

When you put water in a freezing temprature it becomes solid.
When you boil water it becomes gas

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3 years ago

Water is Carried to the leaves by stomata

tiny-mole [99]

Answer:

please explain further and i maybe can help you

Explanation:

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2 years ago

2. How many moles are in 8.30 x 1023 molecules of H2O?

daser333 [38]

Answer:

<h2>1.38 moles</h2>

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

$n = \frac{N}{L} \\$

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

$n = \frac{8.30 \times {10}^{23} }{6.02 \times {10}^{23} } = \frac{8.30}{6.02} \\ = 1.3787 37...$

We have the final answer as

<h3>1.38 moles</h3>

Hope this helps you

8 0

3 years ago