Question

which of the following has a mass of approximately one gram
1) a full can of soda
2) a paper clip
3) one gram of salt
4) a heaping spoonful of sugar

Answer 1

1 is about 350 grams
2 is slightly more than a gram
3 says it is a gram
4 is about 3 to 5 grams

So 3 is a gram but 2 is approximately a gram. So either? Unless they want approximately but not equal to then 2 I guess.

Answer 2

ok thank you

Answer 3

I have another question can you help me

Answer 4

I suppose 2 depends on the size of the paperclip though. So it could be much more.

Answer 5

ok

Answer 6

can you help me with another one

Answer 7

sure

Answer 8

ok fireworks contain different elements in them display different colors. The different colors occur because

Answer 9

fireworks contain different elements in them display different colors. The different colors occur because
1) the different elements burn at different temperatures
2) atoms are various elements react with teach other differently
3) atoms are various elements at emit light at different frequencies
4) atoms of different elements have different number of protons

Answer 10

3 seems like the most correct answer I think. Here is some additional info. http://scifun.chem.wisc.edu/chemweek/fireworks/fireworks.htm

Answer 11

ok thankxs
I have 3 more questions could you help me with them

Answer 12

ok

Answer 13

condensation occur when
1) a gas changed to a liquid
2) a solid changes to a liquid
3) a liquid changes to a gas
4) a gas changes to a solid

Answer 14

1

Answer 15

ok When compared to high viscosity liquid a liquid with a low viscosity does what?
1) must have a lower volume
2) it is easier to pour
3) Must have a higher density
4) takes longer to pour from one container to another

Answer 16

Not sure but 2 is the only one that makes sense to me

Answer 17

ok last one is Why does ice cube float in a glass of water?
1) the ice cube is loosing mass through the melting process.
2) the colder ice is more dense
3) Liquid water is less dense than ice cubes
4) the molecule's of an ice are arranged in an orderly way so that there is an unusual large amount of empty space in the ice cubes

Answer 18

Ice is less dense than water. It is the only way it can float thus #4 makes the most sense.

Answer 19

ok thanks

Answer 20

im became a fan ok

Answer 21

ok, you're welcome