What causes changes of states in matter?
2 answers:
The answer is A I believe
Answer:
A. thermal energy/heat.
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I am pretty sure that B is the answer
Answer:
the answer is in fact 7/2
1. 79
2. 330
3. 452
4. 1212
5. 351
6. 202
7. 238
The first step would be to add 7 to both sides.
3n-7=30
add 7
3n=37
divide by 3
n=12.33
Answer:
look at the photo..................
