Mrs. rushing has 3 chemistry classes with 24 students in each. an experiment calls for each student to use 4 test tubes.
how many test tubes are needed in all for her classes?
32 test tubes
96 test tubes
288 test tubes
384 test tubes

the answer is 288 tubes

Explanation:

cause if you take 24 students and times that by 3, it gives you 72. Then, you do 72 times 4.

out of these options:

ability to burn paper

pure sodium reacting violently with water

the boiling point of water

helium does not tend to react with anything

i would say this is a physical property:

helium does not tend to react with anything

why? :

i said helium does not tend to react with anything because well, it reacts to ! but ability to burn paper, pure sodium reacting violently with water, & the boiling point of water are chemical or

physical properties: the properties of a substance that can be observed without changing the chemical makeup of the substance

chemical properties: properties of a substance relating to the chemical nature and reactivity of the substance

they are made of gases.

they have a spherical shape.

they make energy through fusion.