Uv
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quick check
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smyynukcucluis
use this oxidation-reduction reaction to answer questions about half-reactions:
mg + 2hcl → mgcl2 + h2
classify these half-reactions by typing in "o" for "oxidation half-reaction," "r" for "reduction half-
reaction," and "n" for "neither."
hci-mgcl2
mg mgcl2 + 2e
2hci + 2e → h2
done
intro
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Which are forms of frozen water? check all that apply. dew frost hail rain sleet

Which answer tells the reason the earth’s climate is getting warmer? too many animals are becoming extinct. large glaciers are melting in antarctica. the earth is moving closer to the sun. driving cars gives off gases that trap heat in the atmosphere.

To find the work done, the force exerted and distance moved are multiplied. a couch is moved twice before you are happy with its placement. the same force was used to move the couch both times. if more work is done the first time it is moved, what do you know about the distance it was moved? a) when more work was done, the couch was moved the same distance. b) when more work was done, the couch was moved less. c) when more work was done, the couch was moved further. d) when more work was done, the couch wasn't moved at all.