she couldnt sleep because her neighbor Mrs. Kearns Tv is loud and her apartmeng has thin walls.
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:
The answer is "Option B".
Explanation:
In this question, the missing choices can be defined in the attached file please find it.
In this phrase, the book describes the book, that is I was seen inside an Adobe Cottage of stubble roof on one end of Jalcocotbn's only roads, which all had named Jalco short. departments and institutions some raised in hospitals, in an emergency, or even in a taxi-cab.
This paragraph describes how the book is all about and it also describes how they left their community in Mexico to get better.
