4) Examine each molecule below. Use the periodic table of the elements to find the name of each element. Then, identify each element present and the number of atoms for each. Molecule/Elements/Num of Atom NO2 Nitrogen&Oxygen 1 / 2 H2S ? ? HCl ? ? NaCl ? ? CaCO3 ? ?

Agas has a volume of 0.7 l at 300 mmhg. what would be the new volume at 900 mmhg

Drag each label to the correct location on the chart. classify each reaction as endothermic or exothermic.

The following reaction shows the products when sulfuric acid and aluminum hydroxide react. al(oh)3 + h2so4 → al2(so4)3 + h2o the table shows the calculated amounts of reactants and products when the reaction was conducted in a laboratory. sulfuric acid aluminum hydroxide initial amount of reactant 40 g 15 g theoretical yield of water from reactant 14.69 g 10.38 g what is the approximate amount of the leftover reactant? 11.73 g of sulfuric acid 10.33 g of sulfuric acid 11.12 g of aluminum hydroxide 13.67 g of aluminum hydroxide