Well you should study how different chemicals work, and make flashcards to carry around or make notes during class to study for later
Answer:
use n=m/M (moles=mass/molar mass) to find out how many moles of C2H6 there are in 60g
Explanation:
This is a physical change.
Answer:
hit with force when moving.
"she collided with someone"
Similar:
crash (into)
come into collision (with)
bang (into)
slam (into)
impact (with)
hit
strike
run into
meet head-on
smash into
smack into
cannon into
plow into
bump into
crack into/against
knock into
dash against
barrel into -
come into conflict or opposition.
"in his work, politics and metaphysics collide"
Explanation:
