Isotopes of the same element have different
a. positions on the periodic table.
b. atomic numbers.
c. mass numbers.
d. elemental symbols
user: one mole of copper equals how many atoms?
a. 0.166 atoms
b. 6.02 atoms
c. 6.02 ×1023 atoms
d. 1.66 ×10-22 atoms

The chemical bond connecting one nucleotide with the next one along the nucleic acid chain is called a

One nanometer is equal to how many meters?

Steam reforming of methane ( ch4) produces "synthesis gas," a mixture of carbon monoxide gas and hydrogen gas, which is the starting point for many important industrial chemical syntheses. an industrial chemist studying this reaction fills a 1.5 l flask with 3.5 atm of methane gas and 1.3 atm of water vapor at 43.0°c. he then raises the temperature, and when the mixture has come to equilibrium measures the partial pressure of carbon monoxide gas to be 1 .0 atm. calculate the pressure equilibrium constant for the steam reforming of methane at the final temperature of the mixture. round your answer to 2 significant digits.