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:
btsloverlay
Explanation:
it has a picture of jimin this is the picture ⬇️
To figure out the empty spot you add all the percents up then subtract 100. That means that the answer is 11 for the section
Answer:
Explanation:
Students need to do research before attending a college and make sure they don't just benefit from your tuition and are actually interested in your skills and knowledge. It's essential to ensure colleges don't encourage you to take out loans. Lastly, think about your future with the college and if it's beneficial for you.
