In the equation Mg (s) + O2 (g) → MgO (s) what is the reactant?

4.87 x 103 + 1.092 x 107 =

Match the following vocabulary 1. A hydrocarbon that contain no double or triple bonds alkene 2. A hydrocarbon that contain a double bond hydrocarbon 3. A hydrocarbon that contain a triple bond functional group 4.

C. How many molecules are in 0.400 moles of N205?

Determine the number of grams of NaCl necessary to make up 100 mL of a 0.10 M solution. 0.017 g 0.58 g 1.7 g 58 g

Which one of these examples shows a homogeneous mixture? oil and vinegar or salt water

A scientist observes the boundary between two tectonic plates for a decade and finds that no new volcanoes have formed over the course of her investigation. Does this result support the theory of plate tectonics? Why or why not?

Why is it incorrect to balance a chemical equation by changing the subscripts?

A solution of CuSO4 is labelled 0.01 M. How much CuSO4 in grams, must be used to make 1 liter of solution? A) 1.120 g B) 1.595 g C) 1.6 g D) 15.0 g

Rank the following elements according to their ionization energy: tin krypton antimony arsenic

Water (3030 g) is heated until it just begins to boil. If the water absorbs 5.49*105 J of heat in the process, what was the initial temperature of the water?