Afarm worker was moving a bale of hay with a forklift. the edge of the machine hit a tall stack of feed, making the top feed sack fall and hit a co-worker in the head. the co-worker suffered blunt force trauma to his head. what type of hazard is represented in this scenario? a. struck-by hazard b. caught-in or caught-between hazard

Struck by hazard. I mean it's pretty self explanatory, somethings "striking" him in the head.

this is true is that what u needed

hydrogen is a compound or a single element and a element is a pure substence that cannot be separated into simpler subtances

clorine is a compound its a chemical substance that forms when two or more different elements combine

so both hydrogen and clorine are compounds