We subtract the enthalpies of the reactants from that of the products:
Since this is < 0, this is an exothermic reaction.
Manipulated variable: the types of soil
Responding variable: how much t the plants grow
Hydrogen bonding and dipole-dipole forces.
When a female animal and a male see each other the male would show off and they woulf matr and make a baby then the babys will grow up and make more
Answer:
2 CH2 + 3 O2 = 2 CO2 + 2 H2O
Explanation:
This is what I think that you meant by the question listed. When balancing a chemical equation, you want to make sure that there are equal amounts of each element on each side.
Originally, the equation's elements looked like this: 1 C on left & 1 C on right; 2 H on left & 2 H on right; 2 O on left and 3 O on right. Because these are not balanced, you need to add coefficients.
When adding coefficients, you need to make sure that all of the elements stay balanced, not just one that you are trying to fix. I know that some equations are really difficult to balance, and when that is the case, there are equation balancing websites that can help out.
However, what always helps me is making a chart and continuing to keep up with the changes I am making. It is a trial and error process.
