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boyakko [2]
3 years ago
7

What term describes the temperature at which a substance can change state from a liquid to a gas?

Chemistry
2 answers:
krok68 [10]3 years ago
4 0

Option A. <u>Boiling point.</u>

Explanation:

When you heat the water, the water gets converts into gaseous form.

As you know that water is in liquid form. So, when you heat the water, the water molecules absorbs the heat and get dispersed from one another molecules. i.e., molecules go far from the other molecules as they absorbed heat.

kirill [66]3 years ago
3 0

Answer:

A. Boiling point

mark brainliest (^_-)

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An oxide of aluminum contains 0.545 g of Al and 0.485 g of O. Find the empirical formula
uysha [10]

Answer:

The answer is: <u>Al2O3</u>

Explanation:

The data they give us is:

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To find the empirical formula without knowing the grams of the compound, we find it per mole:

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35.5 moles of lithium fluoride is dissolved in 65 L of solution
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Explanation:

L

=

1.10

L

of solution

Explanation:

The Molarity

M

is calculated by the equation comparing moles of solute to liters of solution

M

=

m

o

l

L

For this question we are given the Molarity 0.88M

We are told the solute is a 25.2 gram sample of LiF, Lithium Fluoride

We can convert the mass of LiF to moles by dividing by the molar mass of LiF

Li = 6.94

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LiF = 25.94 g/mole

25.2

g

r

a

m

s

x

1

m

o

l

25.94

g

r

a

m

s

=

0.97

moles

Now we can take the the molarity and the moles and calculate the Liters of solution

M

=

m

o

l

L

M

L

=

m

o

l

L

=

m

o

l

M

L

=

0.97

m

o

l

0.88

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L

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