state whether the half equation shows Oxidation or reduction Br2(Aq) + 2Br-(aq) > + 2e-​

This active feature of earth's crust in building mountain ranges as well as islands. this feature is a a) cavern. b) earthquake. c) mountain. d) volcano.

Write the formula for the following chemicals. 7. e. trinitrogen tetraoxide a calcium phosphate f. magnesium acetate b. potassium sulfide g nickel(iii) cyanide c carbon dioxide h. silver sulfate d. cobalt(ii) chloride

Calculate the concentration of all species in a 0.165 m solution of h2co3.