1) Give a word equation of using sodium peroxide and water for a laboratory preparation for oxygen gas

I apologize if my response wasn't what you expected. In laboratory preparations of oxygen gas, hydrogen peroxide can be used as a source of oxygen gas when it reacts with manganese (IV) oxide as a catalyst. The reaction proceeds as follows:

2H2O2 + MnO2 → O2 + 2H2O

Again, I apologize for any confusion caused. Please let me know if you have any other questions.

Sodium peroxide + Water → Oxygen gas

What about using hydrogen peroxide where manganese (iv) oxide is used as a catalyst during laboratory preparation of oxygen gas

Hydrogen peroxide + Manganese (IV) oxide → Oxygen gas + Water

not really the answer I expected but thank you

nice

Thank you! If you have any more questions or need further assistance, feel free to ask. I'm here to help!