Give the nuclear symbol for the isotope of gallium that contains 40 neutrons per atom

how many grams of the excess reactant are left over when 4.43E-1 moles of Al (s) react with 1.29E+0 moles of Cl (g) ?
2Al (s) + 3Cl (g) → 2AlCl (s)

Calculate the concentration of sodium ions made by diluting 45.0 mL of a 0.748 M solution of sodium sulfide to a total volume of 250.0 mL

A sample of C3H8 has 8.08 * 1024 H atoms. How many carbon atoms does the sample contain? What is the total mass of the sample?

What is gallium oxide + calcium?

5. The rate constant for the reaction 3A  4B is 6.00 x 10-3 L•mol-1min-1. How long will it take the concentration of A to drop from 0.75 M to 0.25 M?

How is the reaction of Zinc metal with Hydrochloric Acid is an example of a redox reaction. identify oxidation states and substances oxidized and reduced.

what noble gas electron configuration is achieved by the bromine atoms in a molecule of BR2, a diatomic element?

What occurs in a chemical reaction? a. products are formed without chemical bonds being broken. b. products are formed from reactants by the breaking and forming of new bonds. c. reactants are formed without chemical bonds being broken. d.

What amount of O2 reacts with 43gAl

Along the right side of the page there are links to various data tables. You receive a fax with a data table labeled "U. S. Laboratory Confirmed Influenza-Associated Hospitalizations and Deaths.