Varies in a family on the periodic table.

Reactivity

Specificity

Along each row of the periodic table, a. atomic mass increases from left to right. b. atomic mass decreases from left to right. c. atomic mass is the same for all elements in the row. d. atomic mass changes in no set pattern.

Two glasses labeled A and B contain equal amounts of water at different temperatures. Maya put a drop of blue dye into each of the two glasses.

How do I convert Kilometers to miles? And Kg to pounds?

How many moles of Lithium Fluoride will you need to add to 250.0 mL of water to make a 5.00 M solution?

In the following equation, nitrogen gas (N2) and hydrogen gas (H2) are products observants or reactants? N2 + 3H2 2NH3

Which equations represent precipitation reactions? More than one can be chosen. A. Na2S + FeBr2 → 2NaBr + FeS B. MgSO4 + CaCl2 → MgCl2 + CaSO4 C. LiOH + NH4I → LiI + NH4OH D. 2NaCl + K2S → Na2S + 2KCl E. AgNO3 + NaCl → AgCl + NaNO3

The amount of massin a given volume of air is

What is the molarity of a solution that contains 612 grams of CaCl2 in 3.04 liters of solution? 1.81 M 201 M 5.52 M

What is the empirical formula for naphthalene

Explain why a piece of aluminum or magnesium can be used to remove tarnish, which is mostly silver sulfide, on silverware.