Which statement describes covalent bases?

they have hydroxide ions.
they produce hydrogen ions.
they are often amines.
they are named the same as ionic compounds

Which mathematical relationship should you us to convert moles of a substance into grams

Arecipe calls for 1.2 cups of oil. how many liters of oil is this?

In the cathode ray tube experiment, j. j. thomson passed an electric current through different gases inside a cathode ray tube in the presence of an electric field. in which two ways did this experiment change scientists’ understanding of the atom?