Indicated by formation of a gas, precipitate, release of heat, or a color change

Neon is an example of a (n) : A. Alkali Metal B. Noble Gas C. Halogen D. Rare Earth Metal

What is fog composed of water droplets in the air

If the Earth's inner core is so hot, then why isn't it molten rock?

What acid is produced by plant roots

What are the three types of nuclear radiation

Which of the following is a measure of randomness in a system? A) entropy. B) kinetic energy. C) potential energy. D) chemical energy.

What substance can be broken down by chemical means? A) ammonia B) aluminum C) antimony D) argon (Castle learning question)

How the law of conservation of mass could be useful for investigating chemical changes

A covalent chemical bond is one in which outer-shell electrons of two atoms are shared so as to satisfactorily fill the outer electron shells of both atoms. protons and neutrons are shared by two atoms so as to satisfy the requirements of both atoms.

To break a chemical bond, energy must be (1) absorbed (2) destroyed (3) produced (4) released