Question

express the following reactions in the form of chemical equations and then balance these equations:
i. phosphorus burns in oxygen to form phosphorus pentoxide .
ii. silver is precipitated out when a copper strip is dipped in silver nitrate solution . the solution turns blue due to the formation of copper (ll) nitrate .
iii. magnesium ribbon is burnt in a jar containing nitrogen gas when a white powder of magnesium nitrate is obtained .
iv. marble(calcium carbonate) dissolves in hydrochloric acid to give calcium chloride , water and carbon dioxide.
v. sodium hydroxide reacts with sulphuric acid to form sodium sulphate and water.​

Answer 1

Explanation:

1. $P_{4} + 5O_{2} \longrightarrow2P_{2}O_{5}$
2. $AgNO_{3} + Cu \longrightarrow Cu(NO_{3})_{2} + Ag$
3. $Mg + N_{2} \longrightarrow Mg_{3}N_{2}$
4. $CaCO_{3} + HCl \longrightarrow CaCl_{2} + H_{2}O + CO_{2}$
5. $NaOH + H_{2}SO_{4} \longrightarrow NaSO_{4} + H _{2}O$

Answer 2

Answer:

These are answers.

Explanation:

thank u