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riadik2000 [5.3K]
3 years ago
11

Which substance can not be broken down by a chemical change? silicon propane ethane water

Chemistry
2 answers:
babunello [35]3 years ago
5 0
I think the answer is silicon :))
navik [9.2K]3 years ago
5 0

Answer:

\huge \boxed{\mathrm{silicon}}

Explanation:

Silicon cannot be broken down by any physical or chemical methods, because it is an element. It has properties of an element nor a compound or mixture.

Silicon is a chemical element with the symbol Si and atomic number 14.

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Is Oxygen - O2 a pure substance or a mixture?
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10. Carbon tetrachloride has a density of 1.60 g/mL. What is the volume of 40 grams of CCl4?
ikadub [295]

Answer:

The answer is

<h2>25 mL</h2>

Explanation:

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volume =  \frac{mass}{density}

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The volume is

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We have the final answer as

<h3>25 mL</h3>

Hope this helps you

5 0
3 years ago
How many grams in 11.9 moles of sulfur? Avogadro’s number: 6.02x1023 atoms = 1 mole Molar mass of sulfur: 32.06 g sulfur = 1 mol
sergiy2304 [10]

Answer:

Mass = 0.37 g

Explanation:

Given data:

Number of moles of sulfur = 11.9 mol

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Solution:

Number of moles = mass/molar mass

by putting values,

11.9 mol = mass/ 32.06 g/mol

Mass = 11.9 mol × 32.06 g/mol

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4 0
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