3
H
1
Upper left of chemical symbol= mass number
Lower left= atomic number
Density = mass/volume = 316/22.5 = 14.045g/mL.
When a plant goes through photosynthesis, it uses light energy and converts it into chemical energy
I'll be honest I'm guessing,
but maybe D
this is so ez,
ok so here what u'll do after u balance the equation:
1. convert grams of oxygen to moles of oxygen.
2. convert moles of oxygen to moles of water
3. convert moles of water to grams of water.
4. bOOm... that's your answer
as follows:
2H2O(l)===>2H2(g)+O2(g)
1. 151200(g)/16(g/mol)=9540 moles of O2
2. 9450 moles of O2 × 2 moles of H2O =18900 moles of H2O
3. 18900 moles of H2O × 10g/mol = 189000g of H2O is required.
