Answer:
energy released by a reaction is gained by the surroundings.
Explanation:
umm... I'm not 100% sure about this
America's age = 243.85 years
<h3>Further explanation</h3>
When converting units, list and multiply all the units until you find the unit you want
Time unit conversion
1 year = 365 days
1 day = 24 hours
1 hour = 3600 s
7.69 x 10⁹ seconds to years :

Answer:
6.022 X 10^23
Explanation:
avatars number states that for every mole of an element there are 6.p22 X 10^23 atoms of that element
Answer:
second answer
Explanation:
The melting point would occur more quickly but stay the same.
So it is answer 2