Match the term with its description. Acid A) A value from 0 to 14 that is used to specify how acidic or basic a compound is when it is dissolved in water
Base B) Used to measure the pH of substances by determining their hydrogen ion concentration
pH C) A compound that increases hydroxide ions (OH−) when it is dissolved in a solution
Litmus paper D) A compound that increases hydrogen ions (H+) when it is dissolved in a solution

The us government wants to allocate billions of dollars in the next 10 years to assure our future energy security. the funds will be spread among a variety of possible energy resources. where do you think the government should put the greatest support: solar energy, wind energy, clean coal, oil exploration, gas exploration, or a combination of sources? are there other efforts that should be explored? support your position with cited information for both questions.

Ahypothesis is? close agreement by competent observers of observations of the same phenomena. a guess that has been tested over and over again and always found to be true. an educated guess that has yet to be proven by experiment. the long side of a right triangle. a synthesis of a large collection of information that includes guesses.

When the force acting on an object points at least partially in the direction of the motion the work done is considered to be negative