1.3 STOICHIOMETRY

Question 1

What is stoichiometry

Answer 1

Stoichiometry :

The quantitative study of reactants and products in a chemical reaction.

Question 2

WHAT IS INSPECTION METHOD?

Answer 2

where you balance eqn then

balance metal , H, O.

Question 3

WHAT IS REDOX REACTION?

Answer 3

Redox reaction is a reaction that involves both reduction and oxidation reactions

Question 4

HOW TO IDENTIFY IF ITS REDUCTION OR OXIDATION REACTION?

Answer 4

reduction the other way around

OXIDATION num (+)
Oxygen (+)
N
Hidrogen (loss)
Electron (loss)

Question 5

WHAT IS ION-ELECTRON METHOD?

Answer 5

its to balance redox eqn for acidic solution

Question 6

HOW TO DO ION-ELECTRON METHOD?

Answer 6

buat mcm balance redox biasa

1. eqn bhagi 2
2. balncekan except H,O
3. balance o dngn ymbat h2o,balance oH dngn tmabah H+

.4. Balance the net charge in each half-equation by adding electron to
the side that has more +ve charge.
5. Multiply the half-equations by appropriate integers to make ē gain equals ē
loss.
6. Add two half-equations in an overall equation. Cancel any species
appearing on both sides.
* Check whether the net charge and atoms are balanced on both sides of
the equation.

Question 7

how to balance Redox Equations For Basic Solutions

Answer 7

Assume the solution were acidic. Balance the equation as if it is in
an acidic solution.
Then follow a simple three-step :

1. Add to both sides of the equation the same number of OH- as
there are H+
to eliminate ALL H+
2. Combine H+ and OH-  to form H2O.
3. Cancel any H2O that you can