Joel's engine is unable to power his car the way it used to. the spark plug is
working, and the engine is compressing properly, so what could be the
problem?

Describe the difference between a. a hypothesis and a theory and b. an observation and an experiment.

Which of the following ocean acidification? are the most likely side effects of a ph less than 7.0 in the ocean b. more metal salts altering the ocean chemistry c. dissolution of the shells of marine organisms d. both a & b e. all of the above.

Astudent is asked to identify and element that is pale yellow brittle solid and does not conduct electricity. at which location in this periodic table would the element most likely be found?