Bases have a pH of

a. more than 7

b. less than 7

c. 7

Use the word "passive transport" in a sentence that demonstrates its meaning

A covalent bond occurs when: a. Two nonmetal elements share electrons to fill octets b. An element becomes stable by transferring electrons C. Two metal elements share electrons d. none of these

You and another student do an experiment to measure the volume of a pipet that is supposed to be 25mL. You both measure the volume of your pipets three times. Your three measurements are 24.8 mL, 25.2 mL, and 25.1 mL (average = 25.0 mL).

What element on the periodic table has a period of 3, and a group of 5?

How many cubic meters are there in 4312 cubic centimeters?

In a resonant hybrid of a molecule like CH3CO2-, how are the electron orbitals of the carbon in CO2 sp hybridized?

Consider the formation of nitrogen dioxide and oxygen: NO (g) + O3 (g) ⇌NO2 (g) + O2 (g) The reaction is first order in O3 and second order overall.

Iron has a density of 7.86 g/cm3. calculate the volume (in dl) of a piece of iron having a mass of 4.15 kg.

Draw the condensed structural formula for the ammonium salt formed when lidocaine reacts with hcl.

Where might you find a temperature of 2 kelvin? a. north poleb. the equatorc. earth's cored. the coldest regions of outer space