Electrons
a have a neutral charge
b are found in the nucleus
c are positively charged
d have a negative charge

Covalent network solids typically have melting points and boiling points. the chemical formula of a network solid indicates in the molecule.

Zoe is investigating the composition of substance a, an unknown substance. using chemical processes, she analyzes substance a and determines it is composed of sodium, oxygen, and hydrogen atoms in a ratio of 1 : 1 : 1. what is substance a? a. a compound b. an element c. a heterogeneous mixture d. a homogeneous mixture

What is happening when the water inside a kettle heats up and begins to boil