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.
You could use the library or the internet when you're considering a topic to write about so you know all you need to when you are writing it.
hope this helps!
Answer:
In a letter to her husband John, March 1776, while he was in Philadelphia, Adams wrote, “Remember the Ladies, and be more generous and favorable to them than your ancestors. Do not put such unlimited power into the hands of the Husbands. Remember all Men would be tyrants if they could.
Well saying dunno is an error in formal/academic writing. In academic writing you would have to write, i do not know, though.
Answer:c
Explanation:it’s a call to action and encourages the reader to get involved
