Question

Part A

Enter the molecular formula for butane, C4H10.
Express your answer as a chemical formula.
C4H10

Part B
Enter the symbol of a sodium ion, Na+, followed by the formula of a sulfate ion, SO42−. Separate the ions with a comma only—spaces are not allowed.
Express your answers as ions separated by a comma.

Part C
Enter the expression 14 (top) 7 (bottom) N+α, where α is the lowercase Greek letter alpha.
Express your answer as a chemical expression.

Part D
Enter the chemical equation 2H^+(aq)+S^2−(aq)→H2S(g).
Express your answer as a chemical equation.

Answer 1

The molecular formula for butane is C4H10. The symbol for a sodium ion is Na+, and the formula for a sulfate ion is SO42-. The expression 14 (top) 7 (bottom) N+α represents an isotope of nitrogen, and the chemical equation 2H+(aq) + S2-(aq) → H2S(g) represents the reaction between hydrogen ions and sulfide ions to produce hydrogen sulfide gas.

Step-by-step explanation:

Part A: The molecular formula for butane is C4H10. It consists of four carbon atoms and ten hydrogen atoms.

Part B: The symbol for a sodium ion is Na+, and the formula for a sulfate ion is SO42-. So, the complete answer is Na+, SO42-.

Part C: The expression 14 (top) 7 (bottom) N+α represents an isotope of nitrogen. The α, which is the lowercase Greek letter alpha, indicates the presence of an alpha particle. So, the complete chemical expression is 14 (top) 7 (bottom) N+α.

Part D: The chemical equation 2H+(aq) + S2-(aq) → H2S(g) represents the reaction between hydrogen ions and sulfide ions to produce hydrogen sulfide gas.