Select the correct statement concerning the formula c2h6o.

a. it is a molecular formula.

b. it is a formula unit.

c. it is the formula of an ionic compound.

d. it represents a molecule made of 1 carbon atom, 2 hydrogen atoms, and 6 oxygen atoms.

For each of the following pairs of solutes and solvent, predict whether the solute would be soluble or insoluble.

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four gases were combined in a glass cylinder with these partial pressures:3.5 atm N2,2.8 atm, 0.25 atm At and 0.15 atm He. What is the mole fraction in the mixture? What is the mole fraction of Ar in the mixture?

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Coefficients in a chemical equation are used to: balance the number of atoms on both sides of the equation ensure that all subscripts on both sides of the equation are the same indicate energy changes that occur during the reaction indicate the type

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