Answer:
The answer is A
Explanation:
It is logical because the balloon lets the student see how much gas is released in the reaction. the balloon inflates with invisible air the student will normally not see.
Answer:
usca en internet bzov urabas
Explanation:
all cells look the same.
rest of the options are a part of the cell theory.
2.5g
10÷2=5
5÷2=2.5
everytime it completes a half life, you divide the number by two
