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Leya [2.2K]
4 years ago
8

Im stuck on these two problems

Chemistry
1 answer:
Vikki [24]4 years ago
3 0

1st figure

answer

c)12

2nd

answer

c)28

#brianliest

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What does it mean for energy to be conserved
marysya [2.9K]

Answer: It means that the energy is being stored or preserved to be used at a later time.

Your question was a little vague, so if this isn't the answer you were looking for, just let me know and I'll fix it.

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6 0
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What mass of NaF must be mixed with 25ml of water to create a 3.5% by mass solution
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Answer:

0.91 g NaF

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A piece of iron (Cp = 0.450 J/(gi°C)) that has a mass of 21.5 g and an initial temperature of 100.0°C is submerged in X g of wat
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