87/the alcohol content of hard liquor is normally given in terms of the "proof," which is defined as twice the percentage by volume of ethanol (c2h5oh) present. calculate the number of grams of alcohol present in 1.00 l of 87-proof gin. the density of ethanol is 0.798 g/ml.

Plz choose one of the compounds from the table and explain how you know the numbers of atoms in your formula. is it possible for two different compounds to be made from the exact same two elements? why or why not? with a limited number of elements (less than 120 are known), does this mean we also have a small number of compounds or do we have a large number of compounds in this world?

How does a scientist the government? a. the scientist tells people in society what to do. b. the scientist determines the policies that the government spends money on. c. the scientist provides unbiased information to the government. d. the scientist makes laws based on his or her research results.

Asample of aluminum foil contains 8.60 × 1023 atoms. what is the mass of the foil?