What is the correct value for Avogadro's number?

A. 6.022 x 10^23

B. 6.023 x 10^22

C. 6.022 x 10^33

D. 6.022 x 10^2.3

E. none of the above

How many protons, neutrons, and electrons are there in 70Se2-?

The solubility of kcl in ethanol is 0.25 g / 100 ml at 25 oc. how does this compare to the solubility of kcl in water?

What is the solution to the problem expressed to the correct number of significant figures? 12.0/7.11? A. 1.688 B. 1.69 C. 1.7 D. 1.70

Define electronegativity. Where on the periodic table is the highest? Explain why this is the case.

A KNO3 solution is made using 84.4 g of KNO3 and diluting to a total solution volume of 1.50 L. Calculate the mass percent of the solution. (Assume a density of 1.05 g/mL for the solution.)

What is carbon fixation, and how does it relate to photosynthesis? It is the absorption of CO2 from the air;, and it occurs during the light-dependent reactions. It is the reduction of CO2, and it occurs during the Calvin cycle.

What is a Boitic factor

What would the partial pressure of water vapor be if you included this gas in the problem and it gave a total of 1.03atm? 0.01 atm 0.03 atm 1.03 atm

Define a balance equations:

What is the best description of the Bohr model of the atom? The atom consists of a positively charged material with negatively charged electrons embedded within it. The atom consists of a nucleus with electrons orbiting randomly around it.