How many nonbonding pairs of electrons are in the following molecule?H-H
A. 6 pairs
B. 1 pair
C. 8 pairs
D. 0 pair
E. none of the above
Answer: D
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Which of the following should not be flushed down the drain in a home with a septic tank?
A) Human toilet wastes B) Vegetable fragments, organic detergents C) Toilet paper and other paper fragments D) Large amounts of bleach, feminine hygiene products, diapers, grease, and condoms
We can use X-rays to determine the internal structure of a mineral, and thereby ________.
A. change the mineral's structure. B. shrink the mineral. C. destroy the mineral. D. identify the mineral. E. change the mineral's composition.
If there is no migration, the size of a population is limited solely by interaction between
A. Natality and fertility B. Life expectancy and survivorship C. Mortality and survivorship D. Mortality and fecundity E. Natality and mortality
What can escape and contaminate ground or surface waters if the soil below and above a landfill is permeable?
A. carcinogens B. leachates C. pollutants D. contaminants