Answer:
The amount of substance needed to saturate water increases as the temperature increases.
Explanation:
Answer:
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It's the sound before the lightning because sound travels faster than light.
The number is written in scientific notation.
The significant figures are the numbers known precisely plus 1 digit that is uncertain.
When the numbers are expressed in scientific notation all the digits before 10^n are significant.
So, 7 and 8 are significant figures and the answer is that the number of significant figures is 2.
Answer: 2
