Fast will mark brainliest which element(s) is/are not balanced in this equation? pb(no3)2 + 2kcl -> pbcl2 + kno3 a.) k b.) k, n, and o c.) n amd o d.) pb, n, and o (even though you don't need the periodic table to figure this out, feel free to use it if you think it will you)

When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change?

Analyze how limestone is weathered and identify the features that are formed as a result of this dissolution

Gusing the milligrams of ascorbic acid you entered above, the ratio of total sample volume to aliquot volume, and the total milligrams of the vitamin c tablet that you dissolved, calculate the mass of ascorbic acid in the vitamin c tablet for each trial. do this by scaling up to find the amount (mg) of ascorbic acid in your 250 ml flask. enter your calculated mass of ascorbic acid in the vitamin c tablet, for each trial. be sure to enter your calculated mass in the corresponding order that you entered your milligrams of ascorbic acid. the milligrams of ascorbic acid you entered for entry #1 previously should correspond to the mass of ascorbic acid that you enter for entry #1 here.