28. When the equation Cr2S3 + HCl -> CrCl3 + H2S
is balanced, one term in the balanced equation is
(c) 3 HS
(b) CrCl2
(d) 2 Cr S3
(a) 3 HCl

In order to calculate the amount of heat transferred you must know the __ and specific heat of the material, as well as the change in temperature. a. volume b. density c. mass d. enthalpy

If we compare and contrast electromagnetic waves with sound waves, all but one statement is true. that is a) sound waves require a medium to travel while electromagnetic waves do not. b) electromagnetic waves can travel through the vacuum of space while sound waves cannot. c) electromagnetic waves must have a medium in which to travel, but sound waves can travel anywhere. eliminate d) sound waves must bounce off of matter in order to travel while electromagnetic waves do not require matter to be present.

Is 343 in the sequence -5, -2, 1, 4, 7