Question

a common chemical reaction involves two ionic compounds that exchange ions to form two new compounds. the reactants and products for one of these reactions are given below.
reactants: lithium hydroxide and strontium chloride
products: strontium hydroxide and lithium chloride
which of the following shows the correct formula for the reactants?
choose 1 answer
lih + srcl
lih + srcl₂
lioh + srcl
lioh + srcl₂
which of the following shows the correct formula for the products?
choose 1 answer
srh₂ + licl₂
srh₂ + licl
sr(oh)₂ + licl₂
sr(oh)₂ + licl

Explanation:

Step1: Determine the formula for lithium hydroxide

Lithium has a charge of \(+1\) (\(Li^{+}\)), hydroxide has a charge of \(-1\) (\(OH^{-}\)). Using the criss - cross method, the formula for lithium hydroxide is \(LiOH\).

Step2: Determine the formula for strontium chloride

Strontium has a charge of \(+2\) (\(Sr^{2 +}\)), chloride has a charge of \(-1\) (\(Cl^{-}\)). Using the criss - cross method, the formula for strontium chloride is \(SrCl_{2}\).

Step3: Determine the formula for strontium hydroxide

Strontium has a charge of \(+2\) (\(Sr^{2+}\)), hydroxide has a charge of \(-1\) (\(OH^{-}\)). Using the criss - cross method, the formula for strontium hydroxide is \(Sr(OH)_{2}\).

Step4: Determine the formula for lithium chloride

Lithium has a charge of \(+1\) (\(Li^{+}\)), chloride has a charge of \(-1\) (\(Cl^{-}\)). Using the criss - cross method, the formula for lithium chloride is \(LiCl\).

Answer:

For reactants: \(LiOH + SrCl_{2}\)
For products: \(Sr(OH)_{2}+LiCl\)