2 years ago

If energy increasing or decreasing as you go from a solid to a liquid

Chemistry

2 answers:

Gelneren [198K]2 years ago

8 0

The energy increases because the molecules in water move faster

yulyashka [42]2 years ago

6 0

I believe the energy decreases

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3 years ago

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2 years ago

If a neutral atom has 24 electrons and 26 neutrons how many protons does it have?

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Answer:

Explanation:

The number of protons in the atom of the neutral element will also be 24.

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2 years ago

How many molecules are in 3.6 grams of NaCl?

raketka [301]

Answer:

$\boxed{\text{None}}$

Explanation:

There are no molecules in NaCl, because it consists only of ions.

However, we can calculate the number of formula units (FU) of NaCl.

Step 1. Calculate the moles of NaCl

$\text{No. of moles}=\text{3.6 g NaCl}\times \dfrac{\text{1 mol NaCl}}{\text{63.54 g NaCl}} = \text{0.0567 mol NaCl}$

Step 2. Convert moles to formula units

$\text{FU} = \text{0.0567 mol NaCl} \times \dfrac{6.022 \times 10^{23}\text{ FU NaCl}}{\text{1 mol NaCl}}\\\\= 3.4 \times 10^{22} \text{ FU NaCl}$

There are $\boxed{3.4 \times 10^{22} \text{ FU NaCl}}$ in 3.6 g of NaCl.

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2 years ago