As you go across the periodic table, do atoms get bigger or smaller? Why?

Where does the solid material go when the solution is made

A scientist heats a flexible container full of neon gas. What will most likely happen to the container as the gas absorbs heat? It will shrink, because the neon atoms will break apart into smaller pieces.

A student labeled 5 tubes 0, 1, 2, 3, 4, 5. Tube 0 contained undiluted protein lysate. The student used the tube 0 lysate to prepared 10-fold serial dilutions in the tubes labeled 1-5. What is the dilution of each of the tubes?

What procedure represents the safest technique to use for diluting a concentrated acid?

1. While cooking, if the bottom of the vessel is getting blackened on the outside. it means that (a) the food is not cooked completely. (b) the fuel is not burning completely. (c) the fuel is wet. (d) the fuel is burning completely.

A substance that speeds up the rate of a chemical reaction is called a. a catalyst. b. a lipid. c. a molecule. d. an element.

How many moles of Mgs203 are in 245g of the compound

A student was trying to obtain lithium by electrolysis of aqueous lithium chloride. Was he successful?

A Gouy balance is used to determine the magnetic susceptibility of a substance. A strong electromagnet is placed next to the sample, which is on a balance.

Is the bonds that cause gaseous Cl2 to become liquid when cooled intramolecular or intermolecular