Question

I am not too good at chemistry so I was looking for help in my "classwork" which I am most probably not doing after class...

Thank you!​

Answer 1

Explanation:

Explanation:Sodium react with nitric acid

11Na + 14HNO3 → 11NaNO3 + NO + N2O + 7H2O

Write the balanced equation for the reaction between potassium hydroxide and sulfuric acid?

2KOH + H2SO4 = K2SO4 + 2H2O <-balanced eq.

25gx1mol/98g=0.255 mol H2SO4

7.7gx1mol/56g=0.138 mol KOH

KOH is limiting

moles K2SO4 = 0.138/2 = 0.069

mass K2SO4 = 0.069 mol x 174g/mol = 12 g

explain what type of chemical reaction is occurring in

Ans:-

The different types of chemical reaction are:

1. Combination reaction

2. Decomposition reaction

3. Displacement reaction

4. Neutralisation reaction

5. Double displacement reaction

6. Oxidation and reduction reaction

1. Combination reaction:

In a combination reaction, two or more elements combine to form a compound or an element and a compound can combine to form a new compound

For example:

Magnesium and oxygen combine when heated to form magnesium oxide.

2. Displacement reaction:

Those reactions in which one element takes the place of another element in a compound, are known as displacement reaction. In general a more reactive element displacement reaction. In general, a more reactive element displaces a less reactive element from its compound.

For example:

When a strip zinc metal is placed in a copper sulphate solution, then zinc sulphate solution and copper are obtained.

3. Double displacement reaction:

Those reactions in which two compounds by the exchange of ions to form two new compound are called double displacement reactions. A double displacement reaction usually occurs in solution and one of the products, being insoluble, precipitates out.

For example:

When silver nitrate solution is added to sodium chloride solution, then a white precipitate of silver chloride is formed long with sodium nitrate solution.

4. Oxidation and reduction reactions:

Oxidation:

1. The addition of oxygen to a substance is called oxidation.

2. The removal of hydrogen from a substance is also called oxidation.

Reduction:

1. The addition of hydrogen to a substance is called reaction.

2. The removal of oxygen from a substance is also called reduction.

From the above definitions, it is clear that the process of reduction is just opposite oxidation. Moreover, oxidation and reduction reactions occur together.