MAGNESIUM BICARBONATE SOLUTION PARTIALLY DECOMPOSES INTO CARBON DIOXIDE GAS, WATER AND SOLID MAGNESIUM CARBONATE. convert to formula

Mg(HCO3)2 --> MgCO3 + CO2 + H2O

the equation that correctly represent the reaction for formation of ammonia is

n2+ 3h2 → 2nh3 (answer d)

1 mole of nitrogen gas (n2) react with 3 moles of hydrogen gas (h2) to form 2 moles of ammonia ( nh3). this is in a process known as haber process were iron is used as a catalyst and reaction take place that a higher temperature and pressure. the process is exothermic hence energy is released.

a polar bond is formed when electrons are shared unevenly between atoms