When burning methane gas, which outcome best demonstrates the law of conservation of mass?

A.

CH4 → CO2 + H20

B.

CH4 + O2→ CO2 + 2H20

C.

CH4 + O2 → 2CO2 + 2H20

D.

CH4 + 2O2 → CO2 + 2H20

Write the IUPAC name for the binary ionic compound Na2O? How would it be used?

Which compound is the most soluble? CuS, Ksp = 1.27 * 10-36 AgI, Ksp = 8.51 * 10-17 PbS, Ksp = 9.04 * 10-29 AgCl, Ksp = 1.77 * 10-10

Which particle of the atom has a negative charge? a. neutron b. nucleus c. proton d. electron

Where are alkaline earth metals found on the periodic table

Tracy is studying for her chemistry exam and she reads that a nitric acid molecule is made of one hydrogen atom, one nitrogen atom and 3 oxygen atoms. The chemical formula for nitric acid is a. HNO3 Oьно OCHN O d. HO3 Oe. HN30

To what chemical reaction class does this reaction belong? 2 mg (s) + o2 (g) 2 mgo (s)

Which best illustrates how particle arrangement changes when solids change into liquids

Express in scientific notation (6.0x10^4) (3.1x10^-1)

How do you measure the mass of a liquid?

Given the following information, calculate the mass for B-11. B-10 has a natural abundance of 19.9 percent, while B-11 has a natural abundance of 80.1 percent. The mass of B-10 is 10.013 amu.