If the volume is cut in half then the pressure is doubles that is boyle's law
Well for one, we used coal for electricity, water for steam engines when they were much in use, natural fossil feuls for our gasoline and oil, and we use earths oxygen/nitrogen gasses to breathe and sadly we are polluting it at a fast rate
Answer: 2
Explanation:
Fe + O2 → Fe2O3
To balance the equation, put 4 in front of Fe, 3 in front of O2 and 2 in front of Fe2O3.
Therefore, the balanced equation for the reaction between iron(Fe) and oxygen (O2) to produce iron(iii) is given as
4Fe + 3O2 → 2Fe2O3
From the above, the coefficients are given below
Fe => 4
O2 => 3
Fe2O3 = 2
Therefore, the coefficient of the product (Fe2O3) is 2
C. If the banks of the river are eroding, then the river will be wider.