Jake collected samples of two substances while he was out walking. after taking the samples home, he ran tests and found that one substance is slippery and conducts electricity in water. these properties made jake conclude that the substance is probably . the other substance continuously made bubbles of hydrogen gas when jake dropped magnesium into an aqueous solution of the substance. jake concluded that the second substance is probably .

One substance which is slippery and conducts electricity in water is probably a base. The other substance which continuously made bubbles of hydrogen gas when Jake dropped magnesium into an aqueous solution of the substance is probably a acid.

Explanation: Bases are those substances which donates ions when dissolved in water. Thus bases produce ions which help in the conduction of electric current.

Bases are slippery in nature and are used in manufacturing of soaps.

Acids are those substances which donates ions when dissolved in water. Thus acids also produce ions which help in the conduction of electric current. Acids are not slippery in nature.

Thus magnesium when dropped into an aqueous solution of the acid releases hydrogen gas.

away from the curb

explanation:

the wheels would then hit the curb if it started to rolling, decreasing the chance of an accident.

geosphere and hydrosphere.

this is because the geosphere has to do with geological events, while the hydrosphere controls all water on earth.