Describe the number of neutrons in atom of cl-37

Balance the chemical equation given below, and determine the number of milliliters of 0.0300 M phosphoric acid required to neutralize 25.00 mL of 0.0150 M calcium hydroxide. ___ Ca (OH) 2 (aq) + ___ H3PO4 (aq) _ ___ Ca3 (PO4) 2 (s) + ___ H2O (l)

Continental air masses form over water and maritime air masses form over land. a. True b. False

f a neutral atom has a mass of 15 amu and an atomic number of 7, determine the number of protons, neutrons, and electrons in the atom.

Which of the following is the correct scientific notation for 0.000451 g? 4.5 x 10-3 4.5 x 10-5 4.51 x 10-4 45.1 x 10-4

Given the following chemical equation, if 162.0 grams of potassium reacts with excess oxygen gas and was found to produce 172 grams of potassium oxide, what is the percent yield for this reaction?4 K (s) + O2 (g) - - > 2K2O (s) 44% 75% 22% 88%

What is the enthalpy of combustion (per mole) of C3 H8 (g) ?

Describe how speed, velocity and acceleration are related?

What is 3 ethyl 3, 4 dimethylheptane abbreviated structural formula?

What kind of energy can be transferred

What could a scientist do to determine what era the Eocene period belongs to on the geologic timescale?