Molecules move from areas of low concentration to high concentration through a process of

Reactants → products Based on the Law of Conservation of Matter, describe the relationship between the mass of the reactants and the mass of the products. A) The mass of the reactants equals the mass of the products.

What happens to the density of a substance as its temperature increases?

Which wheel and axle would allow a load of rocks to be dragged with less force? Two wheel and axles A. Wheel and axle A. B. Wheel and axle B. C. Both devices would require the same amount of force. D. Not enough information

Which has more KE a baseball traveling at 50 mph or a baseball travelling at 100 mph? Explain.

An archer pulls her bowstring back 0.376 m by exerting a force that increases uniformly from zero to 251 N. (a) What is the equivalent spring constant of the bow? N/m (b) How much work does the archer do on the string in drawing the bow? J

5. While a gas does 500J of work on its surroundings, 800J of heat is added to the gas. The mass of the gas is 300 grams, specific heat capacity is 1000 Joules/kg and the work is done keeping pressure constant.

A transparent film laminated to a fabric is identified in the study material as a. stretch fabric. b. PVC. c. a skin. d. two-faced fabric

Light from the sun travels through space to Earth's atmosphere. Which will light waves do when they move from empty space into matter made up of different gases? A. move at the same speed B. move faster as they transmit C. slow down and refract D.

A 12.5 kg box sliding on a frictionless flat surface tuns into a fixed spring which compresses at a distance x = 14.1 cm. the spring constant is 94.5 kN/m Find the initial speed of the box

An earth scientist who studies hydrosphere