What are the two different ions present in the compound Li₃N?

Give the correct number of significant figures and units: (6.789 L – 0.56 L)/123 g

1 barrel of oil contains 42.0 gallons. How many liters is this? (1gal = 3.75 L)

How many significant figures does the result of the following sum contain?         8.520 – 2.7

Convert 2,250 mm3 to m3.  (1 L = 1000 mL, 1 mL = 1cm3).

List the number of protons, neutrons, and nucleons, in that order, for ³⁵Cl:

What is the empirical formula for C₈H₁₆O₄?

Which of the following is the formula for sulfuric acid?

When atoms of aluminum-27 are bombarded with alpha particles, a neutron and an element are produced. The particular isotope formed is         He + Al n + ____

A 32-year-old single sexually active female has a Pap smear report of LGSIL with +HPV.  What is the next step?