A student has a sample of aluminum that has a mass of 27 g and a volume of 10cm3. What is the density of aluminum

What is the value of keq for the reaction expressed in scientific notation?

In 2002, the rare earth elements mine in mountain pass, california was closed because

Sodium sulfate dissolves as follows: na2so4(s) → 2na+(aq) + so42- (aq). how many moles of na2so4 are required to make 1.0 l of solution in which the na concentration is 0.10 m?