Which of the following techniques can be used to separate a heterogeneous mixture into its component parts? (3 points) Sort by color
Separation by density
Apply heat
Apply pressure

What is the specific heat of a substance that absorbs 2.5×10^3 joules of heat when a sample of 1.0 ×10^4g of the substance increases in temperature from 10°c to 70°c?

Achange in the number of neutrons in an atom will change an blank . when the number of protons changes in an atom, a new element will form.

Seltzer water is created by placing water under pressure with carbon dioxide gas. which of the following statements best describe seltzer water: a. the solution will be slightly acidic b. the solution will be slightly basic. the solution will be strongly acidic. d. the solution will be strongly basic. e. the solution will be neutral