What is common to all elements in the same group on the periodic table

If, in a peptide chain, there were 85 amino acids each joined by peptide bonds, how many n-terminus groups would be present?

How will you conver ethane to butane?

What will increase the salt concentration in seawater?

Carbon reacts with oxygen to produce carbon dioxide (CO2 (g), Delta. Hf = - 393.5 kJ/mol) according to the equation below. Upper C (s) plus 2 upper O subscript 2 (g) right arrow upper C upper O subscript 2 (g).

Compare and contrast protons, neutrons, and electrons, nucleus, electron cloud and include definition charge and position in the atom

Which is the balance equation for S8+O2=SO2

Sound waves travel fastest through? A.) Air B.) Steel C.) Water D.) Vacuum

Which of the following combinations will result in a reaction that is never spontaneous? 1) positive enthalpy change and positive entropy change 2) positive enthalpy change and negative entropy change 3) negative enthalpy change and positive entropy

Which of the formed elements is present in the greatest concentration?

A compound has a percent composition of 24.74% potassium (molar mass = 39.10 g/mol), 34.76% manganese (molar mass = 54.94 g/mol), and 40.50% oxygen (molar mass = 16.00 g/mol).