When substances go through chemical changes what happens

Explain why neon is monatomic but chlorine is diatomic.

An electromagnetic wave has a frequency of 6.00x10^8 Hz. What is the wavelength?

What is included in a chemical equation

How many liters of hydrogen gas are formed from the complete reaction of 1.04 mol of C? Assume that the hydrogen gas is collected at a pressure of 1.0 atm and temperature of 316 K.

You are to give ampicillin 35 mg/kg to a child with a mass of 26 kg. If stock on hand is 250 mg/capsule, how many capsules should be given?

True or False: It is recommended to use sugar cubes to sweeten lemonade because they have a low surface area.

54,000,000 nanometers equals 0.000000054 megameters.

When cream mixes with coffee, is this a chemical or physical change?

A gas occupies 72.1 at stp. At what temperature would the gas occupy 85.9 L at a pressure of 93.6 kPa?

An 80 kg volleyball player lands from a jump and tries to stop her forward motion. The normal contact force exerted by the floor on her shoes is 2000 N. The friction force exerted by the floor on her shoes is 600 N acting backward on the player.