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Maurinko [17]
3 years ago
15

PLEASE HELP I BEG YOU I REALY NEED HELP

Chemistry
2 answers:
Korvikt [17]3 years ago
5 0

Answer: 1. Physical change

2. volume

3. true

Explanation:

padilas [110]3 years ago
3 0

Answer: 1

Explanation:

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Why do all atoms of an element have the same atomic number, although they may have different mass numbers?. What do we call atom
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Answer:

n_{NH_3}=0.18molNH_3

Explanation:

Hello,

In this case, the undergoing chemical reaction is:

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3 years ago
The half-life of cobalt-60 is 5.3 years. after __________ years, 1/4 of the original amount of cobalt-60 will remain.
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