Density involves the amount of a material in a certain volume. when a material changes phases, it changes in density in a predictable way as the amount of material stays the same but the molecules get farther apart or closer together. water has solid and liquid states that do not follow these predictions of density in the phases of matter.
what does that mean about the densities of the phases of water?
the solid state is the most dense, followed by the liquid state, then the gas state.
the solid state is more dense than the liquid state.
the liquid state is more dense than the solid state.
the gas state is the most dense, followed by the liquid state, then the solid state.

True or false when elements combine to form a mixture, the resulting chemical properties may be very different from those of the elements that make it.

The frequency of vibrations of a vibrating violin string is given by f = 1 2l t ρ where l is the length of the string, t is its tension, and ρ is its linear density.† (a) find the rate of change of the frequency with respect to the following. (i) the length (when t and ρ are constant) (ii) the tension (when l and ρ are constant) (iii) the linear density (when l and t are constant) (b) the pitch of a note (how high or low the note sounds) is determined by the frequency f. (the higher the frequency, the higher the pitch.) use the signs of the derivatives in part (a) to determine what happens to the pitch of a note for the following. (i) when the effective length of a string is decreased by placing a finger on the string so a shorter portion of the string vibrates df dl 0 and l is ⇒ f is ⇒ (ii) when the tension is increased by turning a tuning peg df dt 0 and t is ⇒ f is ⇒ (iii) when the linear density is increased by switching to another string df dρ 0 and ρ is ⇒ f is ⇒

We have a colorless transparent liquid. it looks like water. we seperated it into a solid and a liquid by evaporration and condention was this a chemichal or a physical seperation a. chemical seperation b. physical seperation