Which choice can be classified as a pure substance?
Responses
salt
salt
salt water
salt water
pumpkin pie
pumpkin pie
iced tea
7 answers
The choice "salt" can be classified as a pure substance.
Which term do these characteristics describe?
The substance is mixed uniformly throughout and each part of the substance contains the same ratio of materials with the same properties.
Responses
compound
compound
homogeneous mixture
homogeneous mixture
pure substance
pure substance
heterogeneous mixture
The substance is mixed uniformly throughout and each part of the substance contains the same ratio of materials with the same properties.
Responses
compound
compound
homogeneous mixture
homogeneous mixture
pure substance
pure substance
heterogeneous mixture
The term that describes these characteristics is "homogeneous mixture."
Which property do solutions with low pH values have?
Responses
have a −OH group
have a negative uppercase O H group,
feels slippery
feels slippery
tastes sour
tastes sour
turns litmus paper blue
Responses
have a −OH group
have a negative uppercase O H group,
feels slippery
feels slippery
tastes sour
tastes sour
turns litmus paper blue
The property that solutions with low pH values have is that they taste sour.
What color do bases turn litmus paper?
Responses
yellow
yellow
red
red
blue
blue
pink
Responses
yellow
yellow
red
red
blue
blue
pink
Bases turn litmus paper blue.