24.08 x 1023 atoms of boron (b) is equal to how many moles of boron? 5 b 10.81 boron a. 2 moles b. 4 moles c. 12 moles d. 6.02 x 1023 moles

A galvanic cell at a temperature of 25.0°C is powered by the following redox reaction: 2MnO4^ - (aq) + 16H + (aq) + 5Pb (s) - ->2Mn^2 + (aq) + 8H2O (l) + 5Pb^2 + (aq) Suppose the cell is prepared with 1.87 M MnO-4 and 1.

Which ph range is ideal for nitrogen in corn crops

Calculate the mass percent of carbon in the hydrated form of the solid that has the formula BeC2O4•3H2O.

If a mixture of two metals was separated based on one metal's ability to allow electricity to pass, which property listed below was important? ductility conductivity luster malleability

What is thermal plasma?

Organize the items listed into the proper sequence of events for gas exchange. a: O2 is transported to cells by circulatory system. b: O2 is drawn into the lungs during inhalation. c: Cells use O2 and generate CO2. d: CO2 is exhaled.

Research about the reaction of baking soda and vinegar

What mass (in mg) does 2.63 moles of nickel have? 3.56 * 105 mg 1.54 * 105 mg 2.23 * 104 mg 129 mg?

Given the propane molecule C3H8 (g) ! a) What is the balanced equation for the combustion of propane in O2? (20 pts.) b) What is the standard enthalpy change ΔH0 for the reaction at 25°C? (20 pts.

Which of the following happens during a chemical change? Check all of the boxes that apply. One atom or more changes into atoms of another element. New substances with different properties are formed. Solids, liquids, or gases may form.