Which are correct formulas for ionic compounds? For those that are not correct, give the correct formula and justify your answer.
a. AICI
b. Na3SO4
c. BaOH2
d. Fe20

Which real-world scenarios below represent physical and chemical changes? -running a car -exploding fireworks -mixing water and powdered drink mix -combining oil and vinegar to make salad dressing -taking aspirin for a headache -diluting bleach with water-digesting dinner-spreading peanut butter on bread

The difference between the atomic number of an element and the element’s atomic mass is the number of ions.

What happened in 2012 and how does it illustrate the importance of understanding the sun and how it works?