5. The formula for a compound that contains an unknown non-metallic element is (NH4)2X. The molar mass of the whole compound is 68.17 g/mol. What is the molar mass of X and identify X.

Compare and contrast solutions and suspensions

What powdery mineral is a health hazard when airborne?

Which of the following reasons best explains why a scientist would want to replicate gregor mendel's pea plant experiment? a. to discover new aspects of the natural world b. to test the predictions of current theories c. to explain recently observed phenomena d. to test the conclusions of prior investigations