Answer:
s
Explanation:
1- Wood
2-Moon
3-Pure water
4-Sand and water
5-Glass
6-Paper
7-Sun
8-Flashlights
9-Glass or polished metal
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Answer:
B
Explanation:
Trees have a major impact on the amount of carbon dioxcide, as they take it in in exchange for oxygen. If someone deforested an area, it would lead to higher levels or the gas in the air.
Answer: 28.4 g of aluminum oxide is produced by the reaction of 15.0 g of aluminum metal
Explanation:
To calculate the moles :
The balanced chemical equuation is:
According to stoichiometry :
4 moles of produce == 2 moles of
Thus 0.556 moles of will produce= of
Mass of
Thus 28.4 g of aluminum oxide is produced by the reaction of 15.0 g of aluminum metal.
Answer: D
Explanation:
The molecular theory of gases states that there are no intermolecular forces between gases. Gas molecules are separated from each other such that individual molecules are far apart from each other. When volume is increased, gas molecules spread out from each other and the distance between them increases thus approximating the situation in ideal gases.
2-7 days, but depends on the procedure