How many moles are in 2.12g Cr2O3

The Ksp expression for the system PbCl2 (s) Pb+2 (aq) + 2 Cl - (aq) is:

Identify the compounds that are soluble in both water and hexane. identify the compounds that are soluble in both water and hexane.

A group of students want to see how temperature affects the time spilled water to dry up what will be independent and dependent variable

In the gas-phase reaction 2A + B 3C + 2D, it was found that, when 1.00 mol A, 2.00 mol B, and 1.00 mol D were mixed and allowed to reach equilibrium at 25°C, the resulting mixture contained 0.90 mol C at a total pressure of 1.00 bar. 1.

60.0 mL of 0.100 M Ca (OH) 2 solution is mixed with 50.0 mL of 0.100 M HNO3. Calculate the volume of 0.100 M H2SO4 needed to neutralize the resulting mixture.

According to the quantum-mechanical model of the atom established by shrödinger, where may the electrons of an atom be found?

Renewable resources cannot be replaced in our lifetime

How do you make a guy who is extremely into you, even though he knows you aren't single, to bug off?

A chemist has dissolved a certain substance in water. The chemist knows that more of the substance could be dissolved into the water before it stops dissolving. Therefore, the current solution is

Which of these particles is the smallest? A. an atom B. a nucleus C. a proton D. an electron