Answer:
Explanation:
The mole ratio in a balanced equation tells us the number of moles of each reactant needed and how many moles of product will be made.
We are asked to find the mole ratio between A and D for this reaction.
The mole ratio is found by comparing the coefficients, which are the numbers in front of the formulas.
A has a coefficient of 4 and D has a coefficient of 3.
Therefore, the ratio between A and D is:
- 4:3
It would be a gas. so gas is the answer
Answer:
B. A chemical change occurred which caused the liquid's physical properties to change.
Explanation:
The reduction of the temperature of the system meant that the reaction absorbed heat energy from it. This shows that a chemical reaction was in progress. New products were formed, and this is proved by the change in the color to blue.