Quartzite is a coarse-grained rock derived from sandstone. Which type of rock is quartzite?

metamorphic

extrusive

sedimentary

igneous

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

The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.

Anyone who's in connections academy chemistry b have the factors that affect the rate of a reaction portfolio already done?