Summarize the trends of the periodic table (atomic radius, ionization energy, electronegativity).

NH3 is an example of A. an element. B. an atom. C. a mixture. D. a compound.

Many acids come from chemical supply companies in specially-coated glass bottles with extra-thick walls. What is the most likely characteristic of an acid that requires a special container?

What is a property that describes how easily is substance undergoes chemical changes?

List five basic steps of the scientific method

A friend is trying to describe a material to you. which of the following is not a description of a physical property of the substance? a. it is red in color. b. it is magnetic. c. when combined with water, it fizzes. d. it melts at 240°c.

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?