Which would aid a student in preparedness for a lab? using a fire extinguisher if there is a fire
reading the lab manual before class
telling the teacher about a chemical spill
cleaning up after the lab

What is conserved in the reaction shown below? h2(g) + cl2 (g) --> 2hcl(g)a. mass onlyb. mass and moles onlyc. mass, moles, and molecules onlyd. mass, moles, molecules, and volume

You open a can of soda at room temperature and hear a hiss. which of the following factors has changed inside the container? a.) atmospheric pressure b.) temperature of gas c.) type of gas d.) amount of gas

The empirical formula of a compound is ch2o and its mass is 120 amu/molecule, what is its formula?