Question

What is chemical equation? Provide examples​

Answer 1

$\underline{\sf\pink{{Chemical\: Equation :-}}}$

$\qquad$ ☀️A chemical equation is the symbolic representation of a chemical reaction.The equation is also called a word equation.

$\qquad$❏ The symbols of the reactants and products are always the same.

$\qquad$❏ A chemical equation shows the changes of reactants to the product by an arrow (→) placed between them.

$\qquad$❏ On the LHS of an arrow, reactants are written and on the RHS products are written in the chemical equation.

$\qquad$❏ The chemical equation can be made more informative by applying symbols :

• Solid - (s)
• Liquid - (l)
• Gases - (g)
• Aqueous solution - (aq)

$\qquad$☀️Reactants which produce gas in reaction - (↑)

$\qquad$☀️Reactants which produce solid in reaction - (↓)

$\sf\pink{{Balanced\:Chemical\:equation:-} }$ A balanced chemical equation is that in which the total number of atoms of each element is equal on both side of the equation.For Examples :-

$\qquad$ $\sf \purple{{AgNO_3 + Cu \longrightarrow Ag + Cu(NO_3)_2}}$

$\qquad$ $\sf\purple{{MgO + H_2O\longrightarrow Mg(OH)_2}}$

$\qquad$$\sf\purple{{H_2S + Cl_2 \longrightarrow S_8+HCL}}$

$\qquad$ $\sf\purple{{NaOH + H_2SO_4 \longrightarrow Na_2SO_4 + H_2O}}$

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