An aqueous solution of potassium sulfate is allowed to react with an aqueous solution of calcium nitrate. identify the solid in the balanced equation.

The number of possible different orbital shapes for the third energy level is a. 1 b. 2 c. 3 d. 4

Serotonin is a compound that conducts nerve impulses in the brain. it contains 68.2 mass percent c, 6.86 mass percent h, 15.9 mass percent n, and 9.08 mass percent o. its molar mass is 176 g/mol. part a determine its molecular formula.

On the periodic table, the average atomic mass for carbon is 12.01 g. Why is it not exactly 12.00?

How do ionic bonds differ from covalent bonds? Electrons are shared in an ionic bond. Electrons are transferred in an ionic bond. Protons are shared in an ionic bond. Protons are transferred in an ionic bond.

Which activity is likely to cause lactic acid fermentation in our bodies? chatting with a friend eating chocolate chip cookies listening to music running up several flights of stairs

Review It! All of the following are correct, except: a; A galaxy contains a vast number of stars, their planetary systems, and a variety of other celestial objects. b; Stars orbit the many planets of a galaxy.

Which would be most likely be the pH of a highly-corrosive acid? a) 1 b) 5 c) 8 D) 11

The unit cell of amazonite is made of three pairs of faces, each pair different from the others. The faces are oriented at angles to one another that are not 90 degrees.

An aqueous solution at 25∘C has a hydronium ion concentration of 3.2*10-9 M. What is the hydroxide ion concentration of the solution? Write your answer in scientific notation. Use the multiplication symbol rather than the letter x in your answer.

What is the electron configuration of a sulfur atom in the ground state?