Question

Chemistry students need to wear protective gear during experiments. Chemical accidents may injure eyes or skin.

What is the best way to combine these sentences?

Chemistry students need to wear protective gear during experiments, chemical accidents may injure eyes or skin.
Chemistry students need to wear protective gear during experiments, however, chemical accidents may injure eyes or skin.
Chemistry students need to wear protective gear during experiments; chemical accidents may injure eyes or skin.
Chemistry students need to wear protective gear during experiments; and chemical accidents may injure eyes or skin.

Answer 1

The third one
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Answer 2

Hello there!

-Chemistry students need to wear protective gear during experiments, chemical accidents may injure eyes or skin. <- This sounds off not quite right.

-Chemistry students need to wear protective gear during experiments, however, chemical accidents may injure eyes or skin. <- Extra thigs were added that wasn't supposed to be added.

<- Chemistry students need to wear protective gear during experiments; chemical accidents may injure eyes or skin.This sounds and looks correct.

-Chemistry students need to wear protective gear during experiments; and chemical accidents may injure eyes or skin. <-This sounds off.

Based on the infromation I gathered this answer is this: Chemistry students need to wear protective gear during experiments; chemical accidents may injure eyes or skin.