Which of the following is a possible definition of a base? (3 points)

At 450 mm hg a gas has a volume of 760 l, what is its volume at standard pressure

Which set of characteristics best describes igneous rock? a) largest type of rock, made of organic matter, hardest type of rock b) least abundant type of rock, made of other rocks, made mostly of minerals c) found on all continents, contains wavy bands of stripes, contains fossils d) most abundant type in earth's crust, made of magma/lava, contains no fossils

Asubstance is a good conductor of electricity which of the following best explains a probable position of the substance in a periodic table