Answer:
F. Universe
Explanation:
Universe and Galaxies are two different things.
Answer:
Endothermic
Explanation:
The temperature of the water decreased.
The water lost heat.
The heat must have gone into getting the KNO₃ into solution.
So, the dissolving of KNO₃ in water is endothermic.
Answer:
Everything to the right of the arrow is a product.
Explanation:
Answer:
substitution is the best method or collecting like terms
Explanation:
Answer:
double replacement is the answer