What does the position of magnesium (mg) on the periodic table tell you about how it reacts with other elements? (2 points)
it is in the second column, so it tends to gain two electrons.
it is in the second column, so it tends to lose two electrons.
it is in the third row, so it tends to lose three electrons.
it is in the third row, so it tends to gain three electrons.

How many molecules are found in 1.32 mol of nacl?

Asample of aluminum foil contains 8.60 × 1023 atoms. what is the mass of the foil?

How does a catalyst increase the speed of a reaction? a. the catalyst eliminates the activated complex stage, allowing products to form immediately. b. the catalyst lowers the energy level of the reactants, making it easier for them to react. c. the catalyst makes it easier for the activated complex to form, lowering the activation energy. d. the catalyst raises the energy level of the products, making the reaction finish sooner. reset next