Question

part 1 (0.5 point) potassium combined with bromine is... formula: name: part 2 (0.5 point) calcium combined with hydrogen is... formula:

Explanation:

Step1: Determine potassium and bromine ions

Potassium (K) forms a +1 ion ($K^+$) and bromine (Br) forms a - 1 ion ($Br^-$).

Step2: Write the chemical formula

To balance the charges, the formula is $KBr$.

Step3: Name the compound

The name of the compound is potassium bromide.

Step4: Determine calcium and hydrogen ions

Calcium (Ca) forms a +2 ion ($Ca^{2 +}$) and hydrogen (H) forms a -1 ion ($H^-$) in this context.

Step5: Write the chemical formula

To balance the charges, the formula is $CaH_2$.

Step6: Name the compound

The name of the compound is calcium hydride.

Answer:

Part 1:
formula: $KBr$
name: potassium bromide
Part 2:
formula: $CaH_2$
name: calcium hydride