Questions from General Chemistry

Q: For each of the following sets of volume/temperature data,

For each of the following sets of volume/temperature data, calculate the missing quantity. Assume that the pressure and the mass of gas remain constant. a. V = 2.01 * 102 L at 1150 °C; V = 5.00 L at...

Q: A widely used weather instrument called a barometer can be built from

A widely used weather instrument called a barometer can be built from a long, thin tube of glass that is sealed at one end. The tube is completely filled with mercury and then inverted into a small po...

Q: Which noble gas has the same electron configuration as each of the

Which noble gas has the same electron configuration as each of the ions in the following compounds? a. calcium bromide, CaBr2 b. aluminum selenide, Al2Se3 c. strontium oxide, SrO d. potassium sulf...

Q: For each of the following pairs, indicate which is smaller.

For each of the following pairs, indicate which is smaller. a. Rb+ or Na+ b. Mg2+ or Al3+ c. F- or I- d. Na+ or K+

Q: Write the Lewis structure for each of the following atoms.

Write the Lewis structure for each of the following atoms. a. He (Z = 2) b. Br (Z = 35) c. Sr (Z = 38) d. Ne (Z = 10) e. I (Z = 53) f. Ra (Z = 88)

Q: Welders commonly use an apparatus that contains a tank of acetylene (

Welders commonly use an apparatus that contains a tank of acetylene (C2H2) gas and a tank of oxygen gas. When burned in pure oxygen, acetylene generates a large amount of heat. 2C2H2(g) + 5O2(g) / 2H2...

Q: Consider the following reaction: Zn(s)+ 2HCl(

Consider the following reaction: Zn(s)+ 2HCl(aq) ZnCl2(aq) + H2(g) What mass of zinc metal should be taken so as to produce 125 mL of H2 measured at STP when reacted with excess...

Q: Select which of the following ions has the Lewis structure:

Select which of the following ions has the Lewis structure: a. B22- b. C22- c. N22- d. O22- e. F22-

Q: Write a Lewis structure for each of the following simple molecules.

Write a Lewis structure for each of the following simple molecules. Show all bonding valence electron pairs as lines and all nonbonding valence electron pairs as dots. For those molecules that exhibit...

Q: Chemicals placed in a microwave oven and exposed to microwave radiation can

Chemicals placed in a microwave oven and exposed to microwave radiation can increase in temperature if they possess a net dipole moment. Which of the following molecules can get hot in an operating mi...