Calculate the pH of a buffer solution prepared by dissolving 0.20 mole of cyanic acid (HCNO) and 0.80 mole of sodium cyanate (NaCNO) in enough water to make 1.0 liter of solution. [K a(HCNO) = 2.0 × 10 –4]

Which of the dna typing techniques do you think you would choose if you had to analyze a dna sample? why?

How does the viscosity of magma change as magma cools?

What causes different colors to appear in the sky? the absorption of light by air molecules the reflection of light by bodies of water the greenhouse effect in earth's atmosphere the scattering and reflection of light by dust particles