A certain hydrate has the formula MgS04 · xH2O. A quantity

Principles of General Chemistry 2
Calculate each of the following quantities: (a) Mass in grams of \(8.42 \mathrm{~mol}\) of chromium(III) sulfate decahydrate (b) Mass in grams of \(1.83 \times 10^{24}\) molecules of dichlorine heptaoxide (c) Number of moles and formula units in \(6.2 \mathrm{~g}\) of lithium sulfate (d) Numb

Fundamentals of Physics 10
An old streetcar rounds a flat corner of radius 9.1 m, at 16 km/h. What angle with the vertical will be made by the loosely hanging hand straps?

Chemistry 11
The thin outer layer of Earth, called the crust, contains only 0.50 percent of Earth's total mass and yet is the source of almost all the elements (the atmosphere provides elements such as oxygen, nitrogen, and a few other gases). Silicon (Si) is the second most abundant element in Earth's crust (27.

Biology 8
A genetic change that caused a certain Hox gene to be expressed along the tip of a vertebrate limb bud instead offarther back helped make possible the evolution ofthe tetrapod limb. This type of change is illustrative of a. the influence of environment on development. b. paedomorphosis. c. a change i

Glencoe Accounting: First Year Course, Student Edition 1
Promissory Notes a. Name the two parties to a promissory note. Which party issues the note? Which party receives the note? b. Describe a situation in which a business might (a) receive a promissory note and (b) issue a promissory note.

Biology: The Dynamic Science 5
What is the difference between hydrocarbons and other organic molecules?

Psychology 5
The tendency to do what authorities tell us to do is known as a. persuasion. b. obedience. c. conformity. d. the self-fulfilling prophecy.

Urban Economics 8
Consider a manufacturing firm that occupies two hectares of land. The firm produces 10 tons of output per day and sells its output at a price of $80 per ton. The firm does not engage in factor substitution as the price of land changes. Intraurban transportation is on trucks, with a unit cost of $12 p