You are required to make 250 cm3 of a solution of sodium hydroxide which has a concentration of
0.1 mol dm-3. What mass of sodium hydroxide would
you need to weigh out?
A 0.1 g
B 1.0 g
C 4.0 g
D 25.0 g

What is the chemical formula of the following compound

It is important to wear proper protective equipment in lab even when not actively performing experiments because accidents can affect any researcher, even one not working on an experiment. select the best answer from the choices provided

1. list three scientific reasons cockroaches may fly.