Explain how Dmitri Mendeleev arranged his periodic table. How was he able to make predictions about the blanks that he left in the table?

How many atoms in 4.75 moles of gold, au?

Which place would have a mild climate

What will be the partial vapor pressure of hexane at 68oC above the mixture of cyclohexane - hexane that contains 34 % of hexane by volume if it is known that the vapor pressure of pure hexane at the given temperature is 760 mm Hg

Which method would be best to separate a mixture of oil and vinegar? - separation by filtration - distillation - separation by density - screening

Which best describes why scientists need to be creative? a. They need to be sure that the evidence backs up the conclusion. b. They need to notice all of the evidence carefully. c. They need to be constantly asking questions. d.

What type of calorimeter would be best to use if you wanted to measure the heat that is released when gasoline is burned?

Tina has a sample of gaseous water at a temperature of 400 C and a pressure of 4 atm. If Tina increases the pressure to 200 atm, will the gaseous water liquefy? Why or why not?

Label the molecular shape around each of the central atoms in the amino acid glycine. hint

Which has more atoms, 2moles of carbon or 2 moles of aluminum

At 100 degrees c, water reacts with acetic anhydride to make acetic acid. also, at 100 degrees c, water reacts with acetylsalicylic acid and reverts it to salicylic acid and acetic acid.