Which is evidence that a chemical reaction has likely occurred?

Write the product: 1. 43.43.43.43 2. x. x. x 3. 100.100.100 4. p. p. p. p. p

The formula for average speed can best be written as

Which is the correct definition of a chemical reaction? A. Substances are mixed together. B. Substances interact to form new substances. C. Things change color. D. Substances melt.

As a substance is changing from a liquid to a gas, the distance between its molecules A. increases, and the temperature of the system remains the same. B. increases, and the temperature of the system decreases. C.

Thermal energy is a form of ... A. neither potential nor kinetic energy. B. both potential and kinetic energy. C. potential energy only. D. kinetic energy only.

What type of wave is sound? longitudinal light surface transversal

What is the difference between meteors and meteorites?

The puzzle box is traditionally associated with the work of

A 0.95-kg sample of water at 11°C is in a calorimeter. You drop a piece of steel with a mass of 0.39 kg at 212°C into it.

Let the magnitudes of two displacement vectors be 4 m and 8 m, respectively. If the two vectors are added, the magnitude of the resultant vector. A. is exactly equal to 4 m. B. is exactly equal to 12 m. C. is greater than 12 m. D.