The chemicals used on farms, golf courses, and domestic gardens are often to blame when groundwater becomes contaminated with A. acid. B. fuel. C. sewage. D. nitrates.

Which of the following pairs of reactants is not correctly listed with its product solution? A. Weak base-strong acid reactants - more acidic solutions B. Weak acid-strong base reactants - more basic solutions C.

What is another name for the metric system? A) The Metric System B) The SI System C) The English System D) US customary system

a flask of 5 litres capacity can with stand a pressure of 10atm and is filled co2 at 27°c and 760mm of hg pressure. at what temperature will it explode on heating

Which phase describes an atom? 1.) a negatively charged nucleus surrounded by positively charged protons 2.) a negatively charged nucleus surrounded by positively charged electrons 3.

Which of the folling is an example of kinetic entergy

An aqueous solution is made from a molecular compound rather than from an ionic compound. If some ions are present in solution, which best describes the solute? A. a weak electrolyte B. a nonelectrolyte C. a strong electrolyte D.

Which of the following measures the radiation given off by atoms per second?

What is the name of the outermost layer that forms a boundary around the outside of each cell

What does an ionic compound form?

How many electrons in an atom could have these sets of quantum numbers n=7 l=3 ml=-1?