5.2 Covalently Bonding and Interactions Quiz

WATCH THIS VIDEO OF A SPIDER WALKING ON WATER. Use the video and your class google doc and 5.2 Pear Deck to help you answer the CER questions 4 and 5 below.

Water Demonstrations Class Google Docs:

Period 2 Period 3 Period 4

Period 5 Period 6

5.2 Pear Decks:

Period 2 Period 3 Period 4

Period 5 Period 6

1

Select evidence that could be used to support the claim: The surface tension of water allows a spider to walk on water. (Select all that apply)

25 paper clips are able to float on the surface of water

Salt is able to dissolve easily in water

Water spreads out on a penny

Water forms into small droplets on a penny

Ice is less dense than liquid water

Water has a high boiling point or takes longer to evaporate than other liquids

Water has a low boiling point or evaporates quicker than other liquids

1

Which reasoning BEST explains why a spider can walk on water?

The surface tension causes water molecules to form weak attractions with the spider's legs allowing it to walk across the water.

The surface tension causes water molecules to form strong attractions with the spider's legs allowing it to walk across the water.

Water molecules form weak attractions with each other allowing the spider to walk across the water without breaking the surface tension.

Water molecules form strong attractions with each other allowing the spider to walk across the water without breaking the surface tension.

1

CLICK SHOW YOUR WORK TO FILL OUT THE TABLE FOR THIS QUESTION. AFTER YOU HAVE SHOWN YOUR WORK, THEN YOU CAN CHOOSE THE CORRECT ANSWER BELOW BASED ON YOUR MOLECULE. (Note: you must show the steps given for your molecule. Do not Google it...it is often wrong, incomplete, and doesn't follow the steps required)
M.C. Question for Part C:
How many lone pairs does S
have?

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2

3

4

CONGRATULATIONS ON FINISHING! PLESE TAKE THIS CHEMISTRY SURVEY IF YOU HAVE NOT DONE SO YET.

5.2 Covalently Bonding and Interactions Quiz

Which molecule above has double bonds?

Which molecule above has ONE lone pair around the central atom?

Select evidence that could be used to support the claim: The surface tension of water allows a spider to walk on water. (Select all that apply)

Which reasoning BEST explains why a spider can walk on water?

Which molecule above has double bonds?

Which molecule above has ONE lone pair around the central atom?

Select evidence that could be used to support the claim: The surface tension of water allows a spider to walk on water. (Select all that apply)

Which reasoning BEST explains why a spider can walk on water?