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andrey2020 [161]
3 years ago
7

-

Chemistry
1 answer:
Archy [21]3 years ago
5 0

Answer:

false

Explanation:

matter is anything that has mass and takes up space

this includes subatomic particles,

atoms (whcih are made of subatomic particles)

elements (whcih consis of atoms)

molecules (which are made of atoms)

compounds (which are made of molecules)

mixtures (homogeneous and heterogeneous)

and even

black holes

cheemistry is the study of the composition, properties, structure and energetic reactions of matter

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Which example best demonstrates Charles’s law?
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Question 12 (1 point)
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Classify the following as homogeneous or heterogeneous mixtures, or pure
victus00 [196]

Explanation:

Sugar -  Pure substance

Magnesium Ribbon - Pure Substance

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6 0
3 years ago
Q #13 How many moles of MgCl2 are there in 350. g of compound?
Vaselesa [24]

<u>Answer:</u>

3.67 moles

<u>Step-by-step explanation:</u>

We need to find out the number of MgCl_2 moles present in 350 grams of a compound.

Molar mass of Mg = 24.305

Molar mass of Cl_2 = 35.453

So, one mole of MgCl_2 = 24.305 + (35.453 * 2) = 95.211g

1 Mole in 1 molecule of MgCl_2 = \frac{1}{95.211} = 0.0105

Therefore, number of moles in 350 grams of compound = 0.0105 * 350

= 3.67 moles



8 0
4 years ago
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