Lithium is a metal with an oxidation number of 1 + and oxygen is a nonmetal with an oxidation number of 2-. which chemical formula represents the compound formed by these two elements?

a. li2o

b. li3o

c. lio

d. lio2

Which change will decrease the number of effective collisions during a chemical reaction? A. adding a catalyst B. increasing the surface area C. decreasing the temperature D. increasing the reactant concentrations E.

Which of these conditions most likely produces an unstable isotope? a. equal numbers of protons and neutrons in a small nucleus b.

What are 4 energy transfer

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At a given temperature, the vapor pressure of heptane is 92.0 torr and the vapor pressure of octane is 31.2 torr. Assuming ideal behavior, what is the vapor pressure of a solution that contains three times as many moles of octane as heptane?

Read the following chemical equation. Al + Cl2 → AlCl3 Which of the following fractions can be used for the mole ratio to determine the mass of Al from a known mass of AlCl3? A. 2/1 B. 3/2 C. 2/2 D. 2/3

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Is 2.86 atm of pressure more of less than 2000 mm of Hg

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Muscles undergo fermentation when no carbon dioxide is available. no oxygen is available. no pyruvate is available. no water is available. no atp is available.