Answer:
Look at the properties of Oxygen and Silicon - the two most abundant elements in the Earth's crust - by clicking on their symbols on the Periodic Table.
Explanation:
Answer:
They are pollinators of alfalfa.
Explanation:
Without them crops wouldn't be here.
In an undisturbed sequence of layers of rocks, the younger layers lie on top of the older layers
Answer:
for one mole of C2H6 there are 7/2 mole of O2 required. so for4. 50 moles you require 4.50 x 7/2 = 15.75 moles of O2.
Explanation:
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