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kati45 [8]
3 years ago
15

SOME ONE HEEEEELLLLPPPPPPPP PLEAAASEEE

Chemistry
1 answer:
stellarik [79]3 years ago
6 0

Answer:

look up chemical board it will help you

Explanation:

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A substance containing atoms of different elements that are bonded together is called a(n):
ser-zykov [4K]

Answer:Molecules

Explanation:

3 0
3 years ago
Determine the number of moles in 382.5g of CO-2
exis [7]

Answer: 8.691 mols of CO₂

Explanation:

To find the number of moles in a given grams, you want to use the molar mass.

Let's first find the molar mass of CO₂.

Carbon's molar mass is 12.011 g/mol

Oxygen's molar mass is 15.999 g/mol

To find molar mass of CO₂, we want to add up the molar mass of carbon and oxygen. Remember, there are 2 Oxygens so we need to mulitply that by 2.

12.011+2(15.999)=44.009 g/mol

Now that we have molar mass, we can convert 382.5 g to mols.

382.5g*\frac{1 mol}{44.009g} =8.691 mol

There are about 8.691 mols of CO₂.

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3 years ago
Describe two ways you could demonstrate an acceleration of 2 meters per second squared?
BaLLatris [955]

Answer:

You could do 88 metars  

Explanation:

7 0
3 years ago
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A car moves at a speed of 50 kilometers/hour. Its kinetic energy is 400 joules. If the same car moves at a speed of 100 kilomete
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ke prop to v^2


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400x2x2


1600j

8 0
3 years ago
Why do you need a correct lewis structure before you can use vsepr to predict a molecules geometry.
JulsSmile [24]

Answer:

so the answer that you get isn't wrong? i dont know

4 0
2 years ago
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