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nadya68 [22]
3 years ago
11

Can someone please answer the question, What is heat?​

Chemistry
2 answers:
Levart [38]3 years ago
6 0

Answer:

hot

Explanation:

pychu [463]3 years ago
6 0

Answer:

Heat is a form of energy that gives the sensation of warmth to us.

Explanation:

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The water molecules absorb energy while evaporating and release it when condensing. Their motion gets faster when they are evaporating and slows back down upon condensation.
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Bromine has two isotopes 79Br and 81Br, whose masses (78.9183 and 80.9163 amu) and abundances (50.69% and 49.31%, respectively)
Reika [66]

Answer:

Average atomic mass = 79.9034 amu

Explanation:

The formula for the calculation of the average atomic mass is:

Average\ atomic\ mass=(\frac {\%\ of\ the\ first\ isotope}{100}\times {Mass\ of\ the\ first\ isotope})+(\frac {\%\ of\ the\ second\ isotope}{100}\times {Mass\ of\ the\ second\ isotope})

Given that:

<u>For first isotope: </u>

% = 50.69 %

Mass = 78.9183 amu

<u>For second isotope: </u>

% = 49.31 %

Mass = 80.9163 amu

Thus,  

Average\ atomic\ mass=\frac{50.69}{100}\times {78.9183}+\frac{49.31}{100}\times {80.9163}\ amu

Average\ atomic\ mass=40.0036+39.8998\ amu

<u>Average atomic mass = 79.9034 amu</u>

4 0
3 years ago
15. You have a solution of .835mol of NaCl in 2.5L of solution, what is the molarity?
Viktor [21]

Answer: 0.334mol/L

Explanation:

M=\frac{mol}{L}

M=\frac{0.835mol}{2.5L} \\M=0.334mol/L

5 0
3 years ago
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