Which net ionic equation describes this reaction? Mg(NO3)2(aq) + Na 2CO3(aq) → MgCO3(s) + 2NaNO 3(aq)

Joseph has hypothesized that sound travels in waves. if he were following the scientific method, what should he do next? a. ask a question. b. test the hypothesis. c. study the results. d. tell other scientists about his hypothesis.

Write a balanced equation showing the formation of copper (ii) nitrite from its elements

The empirical formula of a compound is ch2o and its mass is 120 amu/molecule, what is its formula?