Question

please answer this chemical equation​

Answer 1

Explanation:

Area of regular polygon =

2

perimeter×apothem

Perimeter = number of sides × side length

Perimeter =5×2=10cm

So, Area =

2

10×12

Area = 60 cm

2

Answer 2

Answer:

$\huge{\color{steelblue}{\underline{\underline{❥Answer❥}}}}$

$\bold{\underline{\underline{Equation\:1→}}}$

$\sf\blue{→3Fe+4H2O—Fe3O4+4H2}$

$\bold{\underline{\underline{Equation\:2→}}}$

$\sf\pink{→Ca+H2O—Ca(OH)^2+H2}$

$\sf{\green{\underline{\underline{Balanced\:form\implies}}}}$

$\sf\pink{→Ca-2H2O—Ca(OH)^2+H2}$

$\bold{\underline{\underline{Equation\:3→}}}$

$\sf\purple{→K+H2O—KOH+H2}$

$\sf{\color{green}{\underline{\underline{Balanced\:form\implies}}}}$

$\sf\purple{→2K+2H2O—2KOH+H2}$

HOPE IT HELPS.