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:
C.
Explanation:
Chin-Kee is a fictional character from the graphic novel "American Born Chinese" which was written by Gene Luen Yang. It is unclear whose side of the family Chin-Kee is actually from since it is never explicitely mentioned in the novel but what is clear is that the Monkey King has transformed into Chin-Kee by the end of the novel, while Jin Wang has transformed into the white American teen Danny who hates Chin-Kee.
Answer:
His yacht was going to Rio.
False. In fact, whoever wrote that paper could be accused of plagiarism. A complete source is important.
