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Rzqust [24]
3 years ago
10

Please I'm begging for help. I'll give you ALL MY POINTS. JUST PLEASE HELP.

Chemistry
1 answer:
sergeinik [125]3 years ago
3 0

Answer:

Explanation:

A Chemical Equation tells the story of a chemical reaction. Reactants are the starting substances in the reaction while Products are the new substances that are formed. The large numbers in front of some of the formulas are called Coefficients. These numbers are used to Balance the equation because chemical reactions must obey the Law of Conservation of Matter. The number of atoms of each element on both sides of the equation must be Equal because matter  cannot be Created or Destroyed. When balancing equations, the only numbers that can be changed are Coefficients; remember that Subscripts must never be changed in order to balance an equation.

Q1) 4Al + 3O2 ---> 2Al2O3

Q2) C3H8 + 5O2 -----> 3CO2 + 4H20

Q3) P4 + 3O2 -----> 2P2O3

Q4) 2KNO3 -----> 2KNO2 + O2

Q5) 3O2 + CS2 ------> CO2 + 2SO2

Try the rest out and tell me did you understand it?

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