Critical Thinking Questions

8. What relationship exists between an atom's valence electrons and the number of dots in the

Lewis structure of the atom?

Which activity is the best demonstration of J. J. Thomson's use of creativity in his work?

The number of particles in a mole is known as

an element has atomic numer 10 and an atomic mass of 20. how many neutrons are in the atom of this element

A college student ran out of salt and pepper to season his eggs with. All of the stores he went to was out of salt so he took it upon himself to make his own.

What is made up of phloem tissue and a cork cambium that protects the stem

You are given a clear solution of KNO3. Using 3-4 sentences explain how you would determine if the solution is unsaturated, saturated, or supersaturated

Which element combination (s) would result in electrons being shared? [] sodium (Na) and oxygen (O) [] carbon (C) and fluorine (F) [] oxygen (O) and hydrogen (H) [] aluminum (Al) and chlorine (Cl)

If you start with 4 moles of iron and 3 moles of oxygen to produce iron oxide, what is the limiting reagent? (You will need to balance the equation first.) Fe + O2 - > Fe2O3

Is burning wood a physical change

A gas is located inside a closed container. if the gas is allowed to occupy more volume inside the container, what will happen to the pressure? (note: there is no gas added to the container.)