Piece of copper (specific heat = 0.385 J/g°C) was heated to 100.°C and then dropped into coffee cup calorimeter containing 100. g of water at 23.0°C. Temperature of water in calorimeter went up to 26.0°C. What was the mass of copper?

Calculate q when 28.6 g of water is heated from 22.0°C to 58.3°C. (specific heat of water is 4.184 J/gᵒC)

In one method of random in vitro mutagenesis by Jena Bioscience, this nucleotide analog can be used.  

Which of the following is a sign of stress in dogs?

How many electrons can be found in 3p sublevel?

Which of the following elements have ns2 np3 valence shell electron configuration? Check all of them!

Briefly explain what summary statistics are, then give two examples.

Which of the following sets of quantum numbers is incorrect?

Which of the following elements is diamagnetic?

In which of the orbitals below would an electron (on average) be farthest from the nucleus?