Question

write equations for the reactions: (i) iron with steam (ii) calcium with water (iii) pottasium with water. please tell me the answer and importantly I need it's explainiation I will follow u and mark u as brainlist​

Answer 1

Answer:

i) $Fe + H_{2}O$ ⇒ $Fe_{3}O_{4} + H_{2}$

• Iron reacts with steam to form hydrogen gas and the oxide Fe3O4.
• This transformation is only possible at higher temperatures, above 823 K.

ii) $Ca + H_{2}O$ ⇒ $Ca(OH)_{2} + H_{2}$

• Calcium reacts with water to form Calcium Hydroxide and Hydrogen gas.
• This reaction can happen even if cold water is used.

iii) $K + H_{2}O$ ⇒ $KOH + H_{2}$

• Here, Potassium reacts with water to form Potassium Hydroxide and Hydrogen gas.
• This reaction can also happen even if cold water is used.

Note: In all these reaction Hydrogen is produced which is highly flammable. So, necessary precautions need to be taken.