I think that it is qualitative data
Answer:
Density is 2
Explanation:
Do the final volume of water divided by the inital
volume of water to get 4
15-11 = 4
Volume = 2
Mass = 8
Then to the equation m/v
8/4 = 2
Density = 2
The formula for hydrogen-hydrogen is H-H
Answer:
It goes away
Explanation:
cause the IR light only can see through clean glass.