How many protons are in Cesium-135 (Cs) ? 35, 55, 80, 195

1) Ag (silver) tarnishes ... physical or chemical property 2) An apple is cut ... physical or chemical property

What did Hubble's law tells us?

Day 19: You throw a baseball straight up in the air, it moves vertically, stops in midair, then falls back down into your hand. Which of Newton's Laws explains the motion of the ball as it travels through the air and how does this Law explain it?

Why are numbers placed before the elements and molecules in a chemical equation?

Write the ions present in a solution of na3po4.

How would non secretion of of saliva effect digestion of food in the mouth.

Which of the following is insoluble in water? a." (NH) SO b. Na so c. Maso d. ZnSO e Baso

What is the difference between a root word and a combining form? List 2 examples of combining form

What is the octet rule and how does it explain the formation of ionic compounds?

Can somebody explain step by step how to solve decomposition reactions?