Answer:
A. Bubbles formed
Explanation:
When a student added a piece of limestone to a solution of hydrochloric acid, bubbles are formed.
The bubbles are as a result of the CO2 gas that is formed.
Below is the reaction:
CaCO3+2HCl → CO2+H2O + Ca++ + 2Cl-
From the left hand side, we can see that the reaction is with limestone and hydrochloric acid. Their reaction forms carbon dioxide gas (CO2), water (H2O), dissolved calcium (Ca++) and dissolved chlorine (Cl-) on the right hand side.
With due observation, bubbles will be seen evolving from the reaction. These bubbles formed is the carbon dioxide gas which reveals that a reaction is taking place.
It seems to me that, it's about a family with somewhat dysfunctional dynamics that irresponsibly places their child at risk.
Hope this helped :)
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~Aurora
Gray billowing clouds, the howling wind and thunder in our ears, above our heads, we donned our ponchos, ready.
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Sorrow is the emotion that is implied by the speaker
Answer:
This contains a graph so i don't really know
Explanation:
