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Natali5045456 [20]
3 years ago
15

What is this for questions 2

Chemistry
1 answer:
emmasim [6.3K]3 years ago
8 0

Answer:

I think is D

Explanation:

PLEASE MARK ME AS BRAINLIEST

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Which of the following is a chemical property? freezing point color ability to react with oxygen hardness
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If 16.4 grams of calcium nitrate is heated as shown in the reaction:
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Answer:

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Explanation:

you first have to find the number of moles of nitrogen dioxide by using the number of moles for calcium nitrate and the mole to mole ratios

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then you use the mole to mole ratios

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x=0.32g/moles of nitrogen dioxide

then you use the formula for the volume

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I hope this helps

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Which type of chemical reaction does this equation exemplify?  
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The radius of a hydrogen atom is 37 pm and its mass is 1.67 × 10-24 g. What is the density of the atom in grams per cubic centim
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Answer:

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The difference in temperature, let's convert F to ºC:

ºC = -80-32/1.8 = -62.22 ºC

dT = -92.6 + 62.2 = -30.4 ºC

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4 years ago
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