Katie's teacher has asked her to identify an unknown substance. She thinks about the properties of matter that will
help her identify the substance. She knows it is a colorless
liquid. She thinks it may be water but knows there are many
colorless liquids that are not water.
Which of the following statements would inform Katie that the
liquid is NOT water?
a The liquid freezes at 32°C.
b The liquid is clear.
C The liquid boils at 100°C.
d The volume of the sample is 100 ml.

Imagine that a new planet is discovered with two moons of equal mass: moon a and moon b. the mass of the new planet is greater than the combined mass of its moons. moon a is farther away from the new planet than moon b. what is the planet's gravitational pull on moon a compared to the planet's gravitational pull on moon b? the planet's gravity repels moon a with a greater force than it repels moon b, which is why moon a is farther away. the gravitational pull on moon b is greater than on moon a because moon b is closer to the new planet than moon a. the gravitational pull on moon b is greater than on moon a because moon b is farther away from the new planet than moon a. the gravitational pull on moon a is the same as the gravitational pull on moon b because distance does not affect the planet's gravity.