What is the molar mass of potassium

What is convection? A. the transfer of heat energy that doesn't involve matter B. the transfer of heat energy from solids to liquids and gases C. the transfer of heat energy between objects that are touching D.

Energy transfers vary in their efficiency. What kind of energy is most likely to flow out of a system? Question 3 options: Potential Chemical Thermal/heat Kinetic

What is the keq value for the following reaction at equilibrium at a temperature of 298K if the concentrations (in mol/L) of the reactants and products are [N2O4] = 0.0450 and [NO2] = 0.0161? N2O4 (g) 2NO2 (g)

Why would you expect a packet of sugar to dissolve faster in hot tea than iced tea?

If a seed crystal was added to a supersaturated solution, how would you characterize the resulting solution?

what is the volume of 0.98 mol oxygen (O2) gas at 275 K and a pressure of 2.0 atm? (the universal gas constant is 0.0821 L*atm/mol*K)

A student asks you for a simple rule to tell apart plants cells and animal cells when viewed under a microscope. Describe such a rule.

Phosphorus tribromide decomposes to form phosphorus and bromine, like this: 4pbr3 (g) → p4 (g) + 6br2 (g) write the pressure equilibrium constant expression for this reaction

Step I of the proposed mechanism involves the collision between NO2 and F2 molecules. This step is slow even though such collisions occur very frequently in a mixture of NO2 (g) and F2 (g).

A 500-g sample of Al2 (SO4) 3 is reacted with 450 g of Ca (OH) 2. A total of 596 g of calcium sulfate is produced in the laboratory. What is the percent yield?