Plants use energy from the Sun to trigger photosynthesis carbon dioxide pulled from the air and water drawn from the roots is converted to sugar to be used wright away or to be stored the longer the day the more food can be produced
<span>Mass oxigen = 2.81 - 2.50 = 0.31 g
Moles O = 0.31 g / 15.9994 g/mol =0.0194
moles Cu = 2.50 g / 63.546 g/mol =0.0393
we divide by the smallest number
0.0194 / 0.0194 = 1 => O
0.0393 / 0.0194 = 2 => Cu
the formula is Cu2O ( Copper (I) oxide )
Ya got this</span>
The average atomic mass formula is:
Substituting the values in the formula:
Hence, 
is the average atomic mass of element M.
Answer:
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Answer:
To find out what water is made of, it helps to look at its chemical formula, which is H2O. This basically tells us that the water molecule is composed of two elements: hydrogen and oxygen or, more precisely, two hydrogen atoms (H2) and one oxygen atom (O). Hydrogen and oxygen are gases at room temperature.
Explanation:
