Which of the following Group 1A elements is the least reactive? A. Cs (cesium) B. Li (lithium) C. K (potassium) D. Na (sodium)

If a gas is in a container that has a volume of 1.5 liters, what is the volume of the gas?

Which solution is the most concentrated? 2.0 mL of 10 M H2SO4, where H2SO4 has a molar mass of 98 g/mol 5.0 mL of 1.0 M PbSO4, where PbSO4 has a molar mass of 303 g/mol 2.0 mL of 10.

One statement of the first law of thermodynamics is that

According to cavalieri's principle, which qualities must be congruent in order for two solids to have the same volume? select all that apply. height surface area cross-sectional area apothem length

Consider the following reaction: KClO3 (s) KCl (s) + O2 (g) (unbalanced) 8.06 moles of potassium chlorate will yield how many: moles of oxygen and grams of KCl

A specific, electrically neutral atom of boron has 5 protons, 5 electrons, and 6 neutrons. what is the mass number of this atom of boron? 6 5 11 16

When does hail happen?

For the reaction, calculate how many moles of the product form when 0.012 mol of O2 completely reacts. Assume that there is more than enough of the other reactant. 4Al (s) + 3O2 (g) →2Al2O3 (s) Express your answer using two significant figures.

Nuclei with too many or too few neutrons are?

Be sure to answer all parts. Enter the formula for potassium dihydrogen phosphate and determine its molecular (formula) mass.