Question

Read the chemical equations. Analyze how reactants are changing during the reaction. Accordingly, for each reaction identify the reactant that has: gained oxygen /lost oxygen / gained hydrogen/ lost hydrogen1. C2H5OH → CH3COOH

2. C3H6 + H2 C3H8

3. P4 + 5O2 P4O10

4. CO2 + H2 CO + H2O

5. Sr + 2H2O Sr(OH)2 + H2

6. Mg + 2HCl MgCl2 + H2

7. 2Na + H2 2NaH
pls answer all the parts
i need help

Answer 1

Answer:

1. C2H5OH → CH3COOH

C2H5OH has gained oxygen

2. C3H6 + H2 → C3H8

C3H6 has gained hydrogen

3. P4 + 5O2 → P4O10

P4 has gained oxygen  

4. CO2 + H2 → CO + H2O

H2 has gained oxygen

CO2 is reduced  

5. Sr + 2H2O → Sr(OH)2 + H2

Sr has gained oxygen

H2O has lost oxygen  

6. Mg + 2HCl → MgCl2 + H2

Mg is oxidized  

7. 2Na + H2 → 2NaH

Na has gained hydrogen

Explanation: