How many neutrons does element x have it it's atomic number is 20 and it's mass is 88?

What is the relationship between potential energy and speed

Cracking is a process that breaks up hydrocarbon chains. a. True b. False

Which best describes what happens when a person sees red leaf A. Human eyes reflect red light back to the leaf B. The leaf absorbs res light from human eyes C. Red light reflected from the leaf enters human eyes D.

Where are gummy bears made?

In terms of entropy and energy, systems in nature tend to undergo changes toward (1) lower entropy and lower energy (2) lower entropy and higher energy (3) higher entropy and lower energy (4) higher entropy and higher energy

How many moles are in 12.5 g of H2O

Substance which allows energy to pass through it

How are insect wings not likely to be fossilized?

True or False: A Solar eclipse occurs when Earth casts a shadow on the Moon.

Compared to a phosphorus atom, a P3 - ion has (1) more electrons and a larger radius (2) more electrons and a smaller radius (3) fewer electrons and a larger radius (4) fewer electrons and a smaller radius