When hydrogen is passed over copper oxide, copper and steam are formed. Write a balanced equation for this reaction and state which of the chemicals are :
`{:((i)"elements",(ii),"compounds",(iii),"reactants"),((iv)"products",(v),"metals",(vi),"non-metals"):}`

When hydrogen is passed over copper oxide. copper and steam are formed. Write a balanced chemical equation for this reaction and state which of the chemicals are non-metals.

When hydrogen gas is passed over heated copper oxide ,copper and steam are formed. Write the balanced chemical equation with physical states. State what kind of chemical reaction is this.

When Hydrogen gas is passed over heated copper (II) oxide, copper and steam are formed. Write the balanced chemical equation with physical states for this reaction. State what kind of chemical reaction is this?

When hydrogen gas is passed over heated copper (II) oxide, copper and steam are formed. Write the balanced chemical equation for this reaction and state (i) the substance oxidised and (ii) the substance reduced in the reaction.

When hydrogen gas is passed over heated copper (II) oxide, copper and steam are formed. Write the balanced chemical equation for this reaction and state (i) the substance oxidized and (ii) the substance reduced in the reaction.

When hydrogen gas is passed over heated copper (II) oxide, copper and steam are formed. Write the balanced chemical equation for this reaction and state (i) the substance oxidized and (ii) the substance reduced in the reaction.

Write a balanced equation for the reaction of the named metal with (i) boiling water (ii) steam.

Write a balanced equation for a reaction in which ammonia is oxidised by: a metal oxide.

Hydrogen gas is passed over black copper oxide. Give balanced reaction.

(a) When sodium is brunt in chlorine, sodium chloride is formed, and when molten sodium chloride is electrolysed, then sodium and chorine are formed. What type of reaction takes place: (i) in the first case ? (ii) in the second case ? (b) When hydrogen is prossed over heated copper oxide, copper and stem are formed. write a balanced chemical equation for this reaction. state which of the chemicals is oxidised and which is reduced ? (c) what would you observe when zinc is added to a solution of iron sulphate ? write the chemical equation of the reaction which takes place. why does this reaction occur?