Question

Define the following as an element, pure substance, heterogeneous mixture, solution or alloy
a) granola bar
b) carbon dioxide gas
c)solder (tin+lead)
d)apple juice
e)pure gold
f)air in the atmosphere

Answer 1

Which ones are you confused about?

Answer 2

@10115658 granola bar, carbon dioxide gas, solder and air in the atmosphere

Answer 3

Ok lets start with granola bar.

Answer 4

@10115658 okay:)

Answer 5

Do you have any ideas what it could be?

Answer 6

i was thinking that it could be a heterogeneous mixture

Answer 7

but i wasn't 100% sure

Answer 8

yep, that's right

Answer 9

Ok, carbon dioxide. Any ideas?

Answer 10

no not at all

Answer 11

Which ones do you think we can rule out?

Answer 12

mixture or solution?

Answer 13

waittt no element, maybe?

Answer 14

since it contains carbon

Answer 15

Is it one element though?

Answer 16

no

Answer 17

therefore we can rule out that it's an element because it is made up of two different elements.

Answer 18

so it's a mixture?

Answer 19

since it has 2 elements right?

Answer 20

A mixture is what you get when you combine two substances in such a way that no chemical reaction occurs between the components and you can separate them again.

Answer 21

Can carbon dioxide be seperated?

Answer 22

Do you think it's easy to separate carbon and oxygen?

Answer 23

no

Answer 24

so we can probably rule out mixture

Answer 25

alright so carbon dioxide gas is a mixture

Answer 26

No it isn't a mixture

Answer 27

ok is it a pure substance?

Answer 28

since its a totally different thing

Answer 29

carbon and oxygen are chemically bonded together which means they aren't a mixture

Answer 30

Yes it is a pure substance, good job

Answer 31

whats solder anyways

Answer 32

tin is kind of like a metal (or at least i'm assuming it is) so would that make it an alloy

Answer 33

yep its an alloy

Answer 34

I was thinking of a way to explain it without saying the word alloy

Answer 35

lol

Answer 36

lol oh wow

Answer 37

ok last one is a little tricky

Answer 38

wait just to check is apple juice a mixture? and is pure gold an element?

Answer 39

air in the atmosphere...hmmm i was guessing it was a pure substance since it lingers in the air and attaches to things but idk

Answer 40

apple juice should be a solution and gold is an element

Answer 41

The components of apple juice are chemically bonded together making it difficult to separate the components

Answer 42

The last one is worded poorly, The atmosphere is a heterogeneous mixture and oxygen is a pure substance

Answer 43

I think it is a pure substance though

Answer 44

oh i thought air in the atmosphere just meant regular atmosphere not us breathing outdoors lol

Answer 45

Actually it should be heterogeneous mixture

Answer 46

Air is made up of a bunch of different molecules such as O2, CO2, N2, and so on. Since the different molecules aren't chemically bonded together, they can't be a pure substance

Answer 47

is it because different gases attract onto it

Answer 48

oh okay

Answer 49

@10115658 thanks for the help

Answer 50

No problem, have a good night :)

Answer 51

you too!