Which statement about the chemical properties of matter is true? a. chemical properties of matter do not change if the state of matter changes. b. chemical properties of matter can be applied to liquids and gases but not to solids. c. chemical properties of matter can vary according to temperature. d. chemical properties of matter cannot be determined from the composition of matter alone. which characteristic determines the chemical properties of matter? a. the physical state of matter b. the physical properties of matter c. how many different elements are present in matter d. how the elements in matter react with other elements

Oxygen and nutrients are moved through the body by the: a. circulatory system c. lymphatic system b. digestive system d. reproductive system

Aplane flying horizontally at an altitude of 1 mile and a speed of of 500mih passes directly over a radar station. find the rate at which the distance from the plane to the station is increasing when it is 2mi away from the station.

On a horizontal frictionless surface, a small block with mass 0.200 kg has a collision with a block of mass 0.400 kg. immediately after the collision, the 0.200 kg block is moving at 12.0 m/s in the direction 30° north of east and the 0.400 kg block is moving at 11.2 m/s in the direction 53.1° south of east. use coordinates where the +x-axis is east and the +y-axis is north.(a) what is the total kinetic energy of the two blocks after the collision (in ) what is the x-component of the total momentum of the two blocks after the collision? (indicate the direction with the sign of your ) what is the y-component of the total momentum of the two blocks after the collision? (indicate the direction with the sign of your answer.)