There are 81 amino acid residues in the precursor molecule of bovine insulin. What is the least number of bases that must be in the DNA chain that codes for this molecule?

Rank the following in order of strength of inter-molecular forces from strongest to weakest: solid liquid gas

Which of the following reagents is an environmental toxin? Select all answers that apply. a. hydrazine sodium b. hydrosulfite triethylene c. glycol triethylene d. glycol 3-nitrophthalic acid e. hydrogen peroxide

Through which of the following ways can heat be transferred? A. only by direct contact between objects at different temperatures OB. by direct or indirect contact between objects at different temperatures C.

To calculate the number of atoms present in 2.0 mol of an element you would:

While diluting some concentrated hcl, a student accidentally got some of the acid on his/her bare hands. what is the appropriate response?

How much water, in liters, must be added to 0.5 L of 6 M HCl to make it 2 M? a. 0.33 b. 0.5 c. 1 d. 1.5 e. 2

You start with 100 grams of zinc how many moles of hydrogen will be produced

What will an atom do if it has 1 to 3 valence electrons

What is milk best described as? solution, suspension, compound, or colloid?

In any chemical reaction, the quantities that are conserved are ... A. mass and moles. B. the number of molecules and the volumes. C. the number of moles and the volumes. D. mass and number of atoms.