Jonas mixes citric acid with baking soda. how does he know the reaction is endothermic?
a) the baking soda changes color
b) the citric acid forms gas bubbles
c) the temperature of the solution increases
d) the temperature of the solution decreases
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Ответ:
(D) The temperature of the solution decreases.
Explanation:
Ответ:
B) The primates shared a common ancestry.
Explanation:
I took a test EXACTLY like this a very long time ago, and since they look similar all the way down, passed down from generation to generation, this would be the obvious answer.
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