Which two subatomic particles are located within the nucleus of an atom? .
a. protons and neutrons.
b. protons and electrons.
c. electrons and neutrons.

Consider the point on the plot where 10.0 g of naoh have been added. what amount of naoh, in moles, has been added? 0.308 mol fecl3 initially present

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

In which region is the substance in both the solid phase and the liquid phase? 1 2. 3 4 mark this and return save and exit next