Identify the following as an element or compound

copper II oxide

Potassium permanganate (KMnO4) reacts with hydrochloric acid (HCl) to form potassium chloride (KCl), manganese chloride (MnCl2), water (H2O), and chlorine gas (Cl2). The balanced chemical equation is 2KMnO4 + 16HCl → 2KCl + 2MnCl2 + 8H2O + 5Cl2.

What is your weight a measure of

a solution is dissolved in 3.502 L of a solution with a concentration of 2.6 mol/L. the mass of the solution is 26 g/mol. how many grams of solution was dissolved in the solution?

Green uses the example of mandated ethanol in fuel as a case study in regulations gone wrong. How might Research, Development and Demonstration, emphasized by Schneider, have avoided the environmental problems associated with corn-based fuel ethanol?

if the theoretical yield of a acetic acide in a certain experiment is 21.4 grams and the actual yield is 19.1 grams, what is the percent yield?

A gas occupying a volume of 25 ft3 weighs 3.5 lbf on the moon, where the acceleration of gravity is 5.47 ft/s2. determine its weight, in lbf, and density, in lb/ft3, on mars, where g = 12.86 ft/s2.

What's the physical state of hydrogen and zinc in 2HCl+Zn=ZnCl2+H2

H2O (s) ⇒ H2O What would be the best argument against writing this in the form of a chemical equation?

What effect does an increase in products have on the reaction rate of a mixture at equilibrium?

Explain the basic principles of a distillation unit operation