Why is it advisable to wear long sleeves when a student works in a chemistry lab

So then if they do spill the chemical then it gets on their cloths and not on then it dosen"t harm them instead it ruins their shirt.

➷ It would be to protect their arms from the chemicals in the lab as many of them are irritable.

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i think it’s a. this is because if they measured the mass of something with a mass of 150g, then their final answer would have to be approximately 150g. though all of their answers are almost 150, rosa and tran have the closest answers (or the exact answer) to the accurate one.

where is the circuit diagram ?