For chemical disposal, why is dichromate converted to Cr(OH)3(s)

An Introduction to Thermal Physics 1
Problem 13P Use a Maxwell relation from the previous problem 1 and the third law of thermodynamics to prove that the thermal expansion coefficient ? (defined in Problem 2) must be zero at T = 0. Problem 1: Functions encountered in physics are generally well enough behaved that their mixed partial d

Chemistry: The Central Science 13
Tausonite, a mineral composed of \(\mathrm{Sr}, \mathrm{O}\), and \(\mathrm{Ti}\), has the cubic unit cell shown in the drawing. (a) What is the empirical formula of this mineral? (b) It is easy to see that \(\mathrm{Ti}\) is coordinated by six oxygen atoms because the \(\mathrm{Ti}\) atom is l

Chemistry 11
Predict the precipitate produced by mixing an \(\mathrm{Al}\left(\mathrm{NO}_{3}\right)_{3}\) solution with a NaOH solution. Write the net ionic equation for the reaction.

BSCS Biology: A Molecular Approach 9
In what ways is photosynthesis important to humans?

Anatomy & Physiology 1
Cardiac muscles differ from skeletal muscles in that they ________. a. are striated b. utilize aerobic metabolism c. contain myofibrils d. contain intercalated discs

Stats Modeling the World 4
Margin of error A medical researcher estimates the percentage of children exposed to lead-based paint, adding that he believes his estimate has a margin of error of about 3%. Explain what the margin of error means.

Biology: The Unity and Diversity of Life 15
Mutations in the genes for clotting factor VIII and IX cause hemophilia A and B, respectively. A woman may be heterozygous for mutations in both genes, with a mutated factor VIII allele on one X chromosome, and a mutated factor IX allele on the other. All of her sons should have either hemophilia A o

Principles of Economics 9
Which of the following is an example of a public good? a. residential housing b. national defense c. restaurant meals d. fish in the ocean