Answer:
physical properties
Explanation:
when wood is cut into firewood, this is a Physical change . the composition of the wood stays the same.
Your answer is
D. <span> D. The force of gravity pulling down on the vase and the force of the table pushing up on the vase are equal.</span>
First we will calculate the number of moles of Iron:
, where n is the number of moles, m is the mass of iron in the reaction and M is the Atomic weight.
moles of Iron.
The same number of moles of Oxygen will take part in the reaction.
So
where 32 is the Atomical Weight of Oxygen (16 x 2).
=>
g
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