Question

30 points for 3 questions. The answer with all correct will get brainliest! PLEASE HELP!

1.)
Which is a FALSE statement about vinegar?
A. It is a pure substance.
B. It is physically combined.
C. It is made up of more than one pure substance.
D. It is capable of being separated into its original components by physical means.

2.)
Air is made up of about 21% oxygen and 78% nitrogen.
In this solution, oxygen is the _____ and nitrogen is the _____.
A. solute; solvent
B. solvent; solute
C. element; compound
D. compound; element

3.)
5 g of sugar is dissolved in 50 g of water.
What is the mass of the sugar water?
A. 45 g
B. 50 g
C. 55 g
D. 60 g

Answer 1

1. "B. It is physically combined." Vinegar is not a naturally occurring substance. 

2."A. solute; solvent" This is because they are both pure elements in this scenario, if they were not the answer would be C

3."B. 50 g" the sugar has dissolved and become a part of the mixture the sugar does not affect the weight b=due to the dissolving. 

Answer 2

For #1 A) its a pure substance

#2 B)

#3 im not sure about this but B