H2+1/2O2-->H2O
since there are two atoms of hydrogen present in the reactants and in the product you don't need to add any number before H2
we add 1/2 before O2 because only 1 atom is needed for the water molecule
Answer:
B
Explanation:
bones are made from many minerals because of calcium;)
The answer is A. EUKARYOTIC PLANT
Hi!
A catalyst is a substance that speeds up the rate of a chemical reaction.
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