When a mineral was heated in a bunsen flame to constant mass, a colourless gas that turned lime water milky was evolved. the remaining solid was cooled and then added to aqueous hydrochloric acid. vigorous effervescence was seen.

what was the mineral?

a aragonite, caco3

b artinite, mgco3.mg(oh)2.3h2o

c barytocalcite, baco3.caco3

d dolomite, caco3.mgco3

Which of the following is not a good technique for managing used oil? a) have specific, labeled catch pans available for technicians who are collecting oil b) spills in your shop and any releases on pavement or outside should be poured down a drain c) do not use oil containers for antifreeze or other non-similar fluids d) be prepared for oil spills with the proper absorbents

Which of the following statements about acidic water is true? a. acid has no effect on the h, o molecules. b. the solution contains a larger number of oh ions than h, o ions. c. the solution contains a larger number of h, o ions than qh ions. d. the solution contains an equal number of h, o ions and oh ions. none of the above e.

Sugar is dissolved in water. which is the solute? sugar neither both water