Question

complete the third cell of the fourth row by providing the name of the compound. formula , pbo₂ type of compound (ionic, molecular, acid) —— name —— spell out the full name of the compound. name: 1 you have already submitted this answer. enter a new answer. no credit lost. try again. submit previous answers request answer

Explanation:

Step1: Determine Compound Type

$PbO_2$ consists of lead ($Pb$) and oxygen ($O$). Lead is a metal, oxygen is a non - metal, so it's an ionic compound.

Step2: Find Oxidation State of Pb

Oxygen in oxides usually has an oxidation state of - 2. Let the oxidation state of $Pb$ be $x$. In $PbO_2$, we have $x + 2\times(-2)=0$. Solving for $x$: $x-4 = 0\Rightarrow x = + 4$.

Step3: Name the Compound

For ionic compounds with metals having multiple oxidation states (like $Pb$ which can be +2 or +4), we use Roman numerals to indicate the oxidation state. So the name is lead(IV) oxide.

Answer:

Type of Compound: Ionic; Name: lead(IV) oxide