A2.00-l sample of was collected over water at a total pressure of 750. torr and 26 °c. when the was dried (water vapor removed), the gas had a volume of 1.93 l at 26 °c and 750. torr. calculate the vapor pressure of water at 26 °c.

Embryos of different species look very similar, which shows that the organisms share a ancestor.

Ahypothesis must be testable and falsifiable to be considered scientific a. trueb. false

What rule is used to determine how many covalent bonds an element can form? a. the number of covalent bonds is equal to six c the number of covalent bonds is equal to five minus the group number plus the group number b. the number of covalent bonds is equal to eight d. none of the above minus the group number select the best answer from the choices provided