2. A student was using a compound microscope and damaged the slide by moving the high power lens into it. The mistake the student most likely made was
A. putting the slide in the wrong place on the stage
using the fine-adjustment knob with the high power objective lens
C. using the coarse-adjustment knob with the high power objective lens
D. using the course-adjustment knob with the low power objective lens

pls help needs to be in by today :((

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

atomic number of carbon is 6

electronic configuration of carbon is 1s²2s²2p²

orbital diagram of carbon is as shown here in the image.

the dissolution of polymer can be thermodynamically described in 2 steps.

bcde is the incorrect answer it is a