How do you write word equations for chemical reactions in a homework assignment?

[Draggu]

Homework Statement

Write word equations to show the changes in:

1)Hydrochloric Acid and Mossy Zinc
2)Manganese Dioxide and Hydrogen Peroxide
3)Hydrochloric Acid and Rolaids
4)Passing electricity through copper (II) chloride (electrolysis)
5)Silver nitrate and sodium chloride

Homework Equations

The Attempt at a Solution

5) Silver Nitrate(liquid) + Sodium Chloride(liquid) -> Silver Chloride (liquid)
1) Hydrochloric Acid + Zinc -> Zinc Chloride?
2) Manganese Dioxide + Hydrogen Peroxide -> Hydrogen Dioxide ??

I have no idea how to do it, especially for #4.

 

[Draggu]

Homework Statement

Write word equations to show the changes in:

1)Hydrochloric Acid and Mossy Zinc
2)Manganese Dioxide and Hydrogen Peroxide
3)Hydrochloric Acid and Rolaids
4)Passing electricity through copper (II) chloride (electrolysis)
5)Silver nitrate and sodium chloride

Homework Equations

The Attempt at a Solution

5) Silver Nitrate(liquid) + Sodium Chloride(liquid) -> Silver Chloride (liquid)
1) Hydrochloric Acid + Zinc -> Zinc Chloride?
2) Manganese Dioxide + Hydrogen Peroxide -> Hydrogen Dioxide ??

I have no idea how to do it, especially for #4.

Please help :(

 

[Borek]

Is silver chloride soluble?

No such thing as hydrogen dioxide. However, mangan can be oxidized.

1 is OK.

Google electrolysis, #4 is easier than you think.