Question

What is the chemical formula of the compound produced when a potassium ion (K+) and a sulfide ion (S2-) combine?(1 point)
Responses

K2S
K 2 S

KS3
KS 3

KS
KS

KS2

Answer 1

The chemical formula of the compound produced when a potassium ion (K⁺) and a sulfide ion (S²⁻) combine is K₂S. This is because two K⁺ ions are needed to balance the charge of one S²⁻ ion.

So, the correct response is **K2S**.