Which of the following is true about neutrons?
a) neutrons provide a positive charge to the atomic nucleus.
b) neutrons neutralize electrons.
c) neutrons provide a negative charge to the atomic nucleus.
d) neutrons keep protons apart so they don't repel each other.

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

The continuous release of nuclear energy caused when one fission reaction triggered more nuclear reactions is a

Why is soap used to remove grease? a. its nonpolar end dissolves the grease. b. it makes the water bond with the grease. c. it chemically bonds with the grease. d. its polar end dissolves the grease.correct answer for apex - a, its nonpolar end dissolves the grease.