Answer:
Explanation:
Convert molecules to moles:
1 mole of NaNO₃= 6.02 x 10^23 molecules of NaNO₃
7.3 x10^24/(6.02 x 10^23)=12mol NaNO₃
Find molar mass:
NaNO₃=1 mole of Na and 1mole of N and 3mole of O
Find grams:
14.01g x 12= 168.12 g of N
Answer:
D. They react readily with oxygen in the air
Answer:
21. c
22. Water is pulled by gravity down below the cave mud. Go to GROUNDWATER. Water gathers into a passage as a spring & flows out
Explanation:
Answer:
All of the above
Explanation:
Their all chemical change
