Which is not a property of a pure substance?

uniform composition

varying composition

fixed composition

What property of an atom determines its general reactivity

What is the pOH of a solution with a [OH-] of 10-11

Which of the following elements is only made in laboratories? sb cm te tb

A certain reaction has the following general form. aA → bB At a particular temperature and [A]0 = 2.80 ✕ 10-3M, concentration versus time data were collected for this reaction, and a plot of 1/[A] versus time resulted in a straight line with a slope

If a solution has virtually virtually no hydrogen ions, what type of pH does it have?

How does the size of ions affect the conductivity of a solution?

How to write complete ionic and net ionic equations?

chromium can combine with chlorine to from corneum chloride which equation is a correct representation of this reaction

What is the atomic weight of a hypothetical element consisting of two isotopes, one with mass = 64.23 amu (26.0%), and one with mass = 65.32 amu? (a) 65.3 amu (b) 64.4 amu (c) 64.9 amu (d) 65.0 amu (e) 64.8 amu

Is this base a physical or chemical property?