Select the correct answer.

Which term refers to a fact that naturally occurs in the universe?

O

A.

scientific law

B.

scientific inquiry

conclusion

D.

hypothesis

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The reaction 2NO2 (g) + F2 (g) - - >2NO2F (g) has an overall second order rate law, rate=k[NO2][F2]. Suggest a mechanism consistent with this rate law, being sure to label steps as fast and slow. (Hint: It is easiest to assume the first step is slow.

What happens to the volume, mass, and density of most solids as their temperature increases?

Why do elements with a higher atomic number tend to be more radioactive

What determines the type of atom

It's easier to determine the elecron configurations for the p-block elements in periods 1,2,3 than to determine the electrons configurations for the rest of the p-block elements in the periodic table beacause

What is the nature of the Ca-Cl bond in a molecule of calcium chloride (CaCl2) if the electronegativity value of calcium is 1.0 and that of chlorine is 3.167 O A nonpolar covalent B. moderately polar covalent C.

Which statement is true about oxidation and reduction in an electrochemical cell? (1) Both occur at the anode. (2) Both occur at the cathode. (3) Oxidation occurs at the anode and reduction occurs at the cathode.

For a solar eclipse to occur,

How many times does the citric acid cycle occur for each molecule of glucose?

Which planet is made of mostly gas