Question

1. what is the correct procedure for students to follow if a chemical is spilled?

a) splash large amounts of water onto the spill. b) immediately ask to go to the restroom.
c) stand back and advise the teacher of the spill. d) run madly out of the room.

1. what are constants in an experiment?

a) the number of repeated trials b) the tools used in an experiment
c) things in an experiment that change d) things in an experiment that dont change

1. determine if the following questions are qualitative or quantitative

the mass of the beaker was 122g
a) qualitative b) quantitative

Explanation:

1. For chemical spills, students should not handle it themselves; alerting the teacher is the safe, correct step.
2. Constants in experiments are factors kept unchanged to isolate the effect of variables.
3. Quantitative data involves numerical measurements, and mass in grams is a numerical value.

Answer:

1. c) Stand back and advise the teacher of the spill.
2. d) things in an experiment that don't change
3. b) Quantitative