When HCl is dissolved in water which of the following is true of the equilibrium which is established?
A) It lies virtually completely to the left.
B) It lies slightly to the left.
C) It lies virtually completely to the right.
D) It lies slightly to the right.
C
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Which of the following processes is not considered physical weathering?
A) Near-surface fracturing B) Frost wedging C) Prying by plant roots D) Thermal expansion E) Oxidation
The first European power to explore in East Asia was
A. the British B. the French C. the Portuguese D. the Spanish
Mass extinctions occurred at the end of the ____
a. Cambrian, Devonian, and Mississippian b. Ordovician, Silurian, and Devonian c. Ordovician, Devonian, and Permian d. Silurian, Devonian, and Permian e. Cambrian, Devonian, and Permian
Aquatic animals such as fish and frogs are especially good indicators of water pollution because ________
A) all chemical toxicants are found in water B) these organisms are the most abundant on Earth C) they are easy to catch D) the metabolism of these organisms is most like ours E) most chemicals are water soluble so they enter these organisms through drinking or skin absorption