Which of the following elements is in the compound Hg2Cl2? Select one:
helium
carbon
hydrogen
mercury

Explain why pure hydrogen cyanide does not conduct electricity, but become a conductor when it is dissolved in water? (at room temp, pure hcn exists as a volatile liquid)

When hydrochloric acid reacts with potassium hydroxide solution, the following reaction occurs. hcl (aq) + koh (aq) h2o (l) + kcl (aq) the reaction gives off heat energy, so it is an reaction.

Avariable that is not being directly tested during an experiment should be changed varied experimented controlled