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.
Answer:
i think the death of his mother
Explanation:
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Answer:
d why she felt the need to test him
Explanation: hope this is right!
Answer:
The law The law companies that companies that value excessive ethics comply with the legal guidelines not solely in letter however go past what is stipulated 1 My proudest accomplishment
The answer is B. the entire story is Bilbo fighting a stereotype he has placed on himself about what it means to be a Hobbit. He is always muttering about eggs and bacon and sleeping in his nice warm bed, because deep inside him there is a part of him that wants to be just like other Hobbits and do the sensible thing. <span /><span>
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