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3 years ago

PLS HELP ME FOR BOTH QUESTIONS

Chemistry

1 answer:

Jet001 [13]3 years ago

7 0

Answer:

IF the match is stuck on the side it could chach burning hot.

2) the burn peices looks like its burned and it becomes black since of it.

Explanation:

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olasank [31]

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Explanation:

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3 years ago

Which type of wave has the lowest energy of the following:

Tcecarenko [31]

Answer:

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3 0

3 years ago

Convert 3828 ml to L

crimeas [40]

Answer:

divide the volume value by 1000

So 3828/1000=3.828

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3 years ago

What is the mass of carbon in 500. g of octane?

denis23 [38]

The answer is: the mass of carbon is 420.6 grams.

m(C₈H₁₈) = 500 g; mass of octane.

M(C₈H₁₈) = 114.22 g/mol; molar mass of octane.

n(C₈H₁₈) = m(C₈H₁₈) ÷ M(C₈H₁₈).

n(C₈H₁₈) = 500 g ÷ 114.22 g/mol.

n(C₈H₁₈) = 4.38 mol; amount of octane.

In one molecule of octane, there are eight carbon atoms:

n(C) = 8 · n(C₈H₁₈).

n(C) = 8 · 4.38 mol.

n(C) = 35.02 mol; amount of carbon.

m(C) = 35.02 mol · 12.01 g/mol.

m(C) = 420.6 g; mass of carbone.

5 0

4 years ago

( i need help on this one )

lara [203]

Answer:

1. False

2.True

Explanation:

7 0

3 years ago