Question

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Answer 1

@Eiwoh2 @SmokeyBrown @Ultrilliam

Answer 2

Let's start by counting the number of each atom on each side of the equation.
On the left side, we can see that there are 2 Carbon and 4 Hydrogen in a single molecule of ethylene. Meanwhile, there are 6 Oxygen, because there are 3 oxygen molecules each with 2 oxygen atoms.
On the right side, there are two hydrogen atoms in each of the two water molecules for a total of 4 Hydrogen. The 2 molecules of carbon dioxide give us 2 Carbon atoms.
Water gives us 2 Oxygen, while carbon dioxide gives us 4 Oxygen, for a total of 6 Oxygen.
So, it looks like the number of atoms on either side of the equation are equal.

Answer 3

Okay so Im thinking B?

Answer 4

or C

Answer 5

@SmokeyBrown

Answer 6

@Bearclaws72

Answer 7

Yup, C would be correct.
Since the number of atoms on each side of the equation is equal, the equation is already balanced.

Answer 8

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Answer 9

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Answer 10

these 2 questions pleasee

Answer 11

@SmokeyBrown

Answer 12

@Shadow

Answer 13

Recall that solutions are made up of two components:
The solvent, in which other substances are dissolved;
and the solute, which is the substance being dissolved.
Of these two, which do you think more fits carbon dioxide in a carbonated beverage?

Answer 14

its either A or C not sure which one

Answer 15

Well, for a substance in a solution to be saturated, that means that the maximum physically possible has already been dissolved. For instance, if you have a saturated solution of sugar water, any additional sugar won't be able to dissolve in that solution.
In the case of carbonated beverages, it isn't necessarily true that the solution is saturated.

Answer 16

So solute?

Answer 17

@SmokeyBrown

Answer 18

Yup, it's a solute.
Sorry, I was away on lunch

Answer 19

Its alright!

Answer 20

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Answer 21

Yup, I think you've got it. That would be an element.

Answer 22

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Answer 23

While it's true that a solution is made up of more than one substance, they aren't chemically combined and they can be separated.

Answer 24

so I would say A

Answer 25

That's close, but making a solution is actually a physical combination, not a chemical one

Answer 26

D?

Answer 27

or wait it can be separated so D and A is out

Answer 28

its either B or C

Answer 29

That's right. So, what's the only answer that makes sense?

Answer 30

C

Answer 31

Right, a solution is a mixture between a solvent and a solute

Answer 32

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Answer 33

Only one of the answer choices is an element that appears on the periodic table. The others are either molecules or mixtures. Which of the choices do you recognize as an element?

Answer 34

Oxygen

Answer 35

Im thinking oxygen or sodium chloride

Answer 36

Yup, oxygen is right.
Sodium chloride is made of two different elements, Sodium and Chlorine.

Answer 37

Ohhhh okay

Answer 38

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Answer 39

Keep in mind that mixtures are physical combinations of more than one substance. All the answer choices but one are either chemical combinations or only contain one element.

Answer 40

Salt water? Since it combines salt and water

Answer 41

and they are two different substances

Answer 42

Yup, that's right!

Answer 43

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Answer 44

Potassium?

Answer 45

Just like the question before, you'll only find one of these choices on the periodic table.
You're right, it is potassium!

Answer 46

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Answer 47

D?

Answer 48

Well, a pure substance can't be separated from itself, since it's only one substance.
On the other hand, mixtures can be separated physically and are made of more than one substance. There's only one choice that leaves.

Answer 49

C?

Answer 50

Yup! Heterogeneous means that it's not the same throughout. But a pure substance, by definition, is the same throughout itself, in other words, homogeneous

Answer 51

Oh I seee, okay lemme see what my grade is

Answer 52

I got the last one wrong. It was "Mixtures are made up of more than one component."

Answer 53

Its fine tho thank you

Answer 54

Alrighty, you're very welcome