Questions from General Chemistry


Q: Why does an ionic compound conduct an electric current when the compound

Why does an ionic compound conduct an electric current when the compound is melted but not when it is in the solid state?

See Answer

Q: Why must the total number of positive charges in an ionic compound

Why must the total number of positive charges in an ionic compound equal the total number of negative charges?

See Answer

Q: For each of the following positive ions, use the concept that

For each of the following positive ions, use the concept that a chemical compound must have a net charge of zero to predict the formula of the simple compounds that the positive ions would form with t...

See Answer

Q: For each of the following negative ions, use the concept that

For each of the following negative ions, use the concept that a chemical compound must have a net charge of zero to predict the formula of the simple compounds that the negative ions would form with t...

See Answer

Q: The fundamental SI unit of length is the meter. However,

The fundamental SI unit of length is the meter. However, we often deal with larger or smaller lengths or distances for which multiples or fractions of the fundamental unit are more useful. For each of...

See Answer

Q: For each of the following elements, give the chemical symbol and

For each of the following elements, give the chemical symbol and atomic number. a. astatine b. xenon c. radium d. strontium e. lead f. selenium g. argon h. cesium

See Answer

Q: Give the group number (if any) in the periodic table

Give the group number (if any) in the periodic table for the elements listed in Problem 85. If the group has a family name, give that name. From problem 85: For each of the following elements, give t...

See Answer

Q: Which of the following statements is(are) true?

Which of the following statements is(are) true? a. Dalton was the first to theorize that atoms consist of smaller particles called electrons, protons, and neutrons. b. Dalton’s atomic theory didn’t...

See Answer

Q: Which of the following is(are) true regarding 37Cl-

Which of the following is(are) true regarding 37Cl- and 40Ar? a. same group number on the periodic table b. same number of protons c. same number of neutrons d. same number of electrons

See Answer

Q: Carbohydrates, a class of compounds containing the elements carbon, hydrogen

Carbohydrates, a class of compounds containing the elements carbon, hydrogen, and oxygen, were originally thought to contain one water molecule (H2O) for each carbon atom present. The carbohydrate glu...

See Answer