MHCl: 1+35,5 = 36,5 g/mol
36,5g ---- 1 mol
21g ------- X
X = 0,575 mol
C = n/V
V = n/C
V = 0,575/4,3
V = 0,1337 L = 133,7 mL
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Answer:
C. Magnetization of iron
Explanation:
This is a chemical change and cannot be undone by physical means therefore it isn't a physical change
Answer:
That answer is B
Explanation:
The sun's gravity pulls on earth's water while the moon gravity pulls on water in the same places
In the first law, an object will not change its motion unless a force acts on it. In the second law, the force on an object is equal to its mass times its acceleration. In the third law, when two objects interact, they apply forces to each other of equal magnitude and opposite direction.