Which of the following statements describes electromagnetism? A. Magnetism can create electricity, and electricity can create magnetism.
B. Magnetism and electricity are actually the same thing.
C. Magnets can do work, and electricity also does work.
D. Electricity and magnetism are both flows of electrons.

Which of these properties, used alone, would be least useful in identifying most minerals? a. color b. luster c. streak d. density

Which of the following contributes to the structural rigidity of cellulose? adjacent glucose polymers are stabilized by hydrogen bonding. glucose residues are joined by (α1→4) linkages. cellulose is a highly branched molecule. the conformation of the glucose polymer is a coiled structure.

To prevent the presence of air, noble gases are placed over highly reactive chemicals to act as inert "blanketing" gases. a chemical engineer places a mixture of noble gases consisting of 4.37 g of he, 13.36 g of ne, and 36.65 g of kr in a piston-cylinder assembly at stp. calculate the partial pressure in torr of kr.