Question

asbestos is composed of magnesium ions (mg²⁺), silicate ions (si₂o₅²⁻), and hydroxide ions (oh⁻) bonded together. for each pair of atoms or ions, identify whether they are covalently or ionically bonded in asbestos. pair of atoms/ions type of bond mg²⁺ and si₂o₅²⁻ si and o si₂o₅²⁻ and oh⁻ o and h mg²⁺ and oh⁻

Explanation:

Step1: Recall ionic and covalent bond definitions

Ionic bonds form between a metal and a non - metal (or polyatomic ion) through electron transfer. Covalent bonds form between non - metals through electron sharing.

Step2: Analyze \(Mg^{2 +}\) and \(Si_{2}O_{5}^{2-}\)

\(Mg^{2+}\) is a metal ion (\(Mg\) is a metal), and \(Si_{2}O_{5}^{2 -}\) is a polyatomic ion. They form an ionic bond.

Step3: Analyze \(Si\) and \(O\)

Both \(Si\) and \(O\) are non - metals. They share electrons to form a covalent bond.

Step4: Analyze \(Si_{2}O_{5}^{2-}\) and \(OH^{-}\)

\(Si_{2}O_{5}^{2-}\) and \(OH^{-}\) are polyatomic ions. They form an ionic bond.

Step5: Analyze \(O\) and \(H\)

Both \(O\) and \(H\) are non - metals. They share electrons to form a covalent bond.

Step6: Analyze \(Mg^{2+}\) and \(OH^{-}\)

\(Mg^{2+}\) is a metal ion, and \(OH^{-}\) is a polyatomic ion. They form an ionic bond.

Answer:

\(Mg^{2 +}\) and \(Si_{2}O_{5}^{2-}\): Ionic bond
\(Si\) and \(O\): Covalent bond
\(Si_{2}O_{5}^{2-}\) and \(OH^{-}\): Ionic bond
\(O\) and \(H\): Covalent bond
\(Mg^{2+}\) and \(OH^{-}\): Ionic bond