An atom is the most unit of living and nonliving things. ( i will mark brainliest if ya , and the first one to )
a) basic
b) complex
c) interesting
d) sizeable

Energy defines the different "states" of matter. in no more than 3 sentences, describe the amount of kinetic energy that each of the 3 states of matter possesses and relate that to the atom/molecular motion of each "state".

Covalent compounds: mastery test select the correct answer what is formed when atoms join together with a covalent bond? a. an ion b. a molecule c. a neutral atom d. a noble gas

Which fossil fuel is mainly used for heating and cooking? a. electricity b. coal c. petroleum d. natural gas