Question

1. Na +... = NH3 2. ...+H2=CH4 3. ...+H2=Ni+...

Answer 1

Ответ:

1. NH4Cl + NaOH → NH3↑

2. C + 2H2 → CH4

3. 4Ni + H2 → 2Ni2H

Насчёт 1 и 3 не уверена

Answer 2

It seems like you've provided incomplete chemical reactions. I'll do my best to interpret and complete them:

1. Na + NH3 → NaNH2 + H2 In this reaction, sodium (Na) reacts with ammonia (NH3) to produce sodium amide (NaNH2) and hydrogen gas (H2).

2. CH4 + 2H2 → CH3CH3 In this reaction, methane (CH4) reacts with hydrogen gas (H2) to produce ethane (C2H6).

3. It seems like you haven't provided enough information for the third reaction. Could you please provide more details or clarify your question?