Dmitri mendeleev's periodic law states that chemical and physical properties repeat themselves in groups of?

During an experiment, the percent yield of calcium chloride from a reaction was 82.38%. Theoretically, the expected amount should have been 105 grams. What was the actual yield from this reaction? CaCO3 + HCl → CaCl2 + CO2 + H2O

What would happen to a nucleus containing two or more protons if the strong force was absent?

g Select the correct order for concentrations of the following species present in a 1.0 mol L-1 solution of a salt of weak acid AH (The salt is AHCl;

Oil is a natural resource that is found inside of Earth. Oil can be used

For the reaction VCl2 + Cl2 → VCl5, what are the reactants, products, and correct coefficients in the balanced equation?

Which term represents the sum of the atomic masses of the atom in a molecule?

How many hydrogen atoms are present in 0.70 moles of ptcl2 (nh3) 2?

What is the [H3O+] of a solution with a pH of 2.56? 2.56 M, 2.75 x 10-3 M, 363 M, or - 0.408 M

What is the law of conservation of energy? A) energy can only be destroyed B) energy will always be renewed. C) energy cannot be created of destroyed. D) energy can never change forms.

Most metals are solid at room temperature, malleable, ductile, good conductors of heat and electricity, and react in acids to produce hydrogen gas. which of the properties mentioned is a chemical property? a. are malleable b. reacts with acids c.