In a DNA sample, 15% of the bases are thymine (T). What percentage of the bases in this sample are cytosine (C) ?

A. 15%

B. 30%

C. 35%

D. 85%

How can you tell if both crops of crystals are your product? Why would additional solid precipitate in your filtrate?

Which functional group defines a ketone? -NH -PO4 -Na =O

Water boils at what degrees Celsius

What is the molarity of a solution prepared by dissolving 12.9 grams of naf in enough water to produce 750 ml of solution?

Which statement is part of the kinetic molecular theory? O A. Gas particles are in constant motion. OB. Gas particles attract each other. ОС. Gas particles lose their energy during collisions. OD. Gas particles stick to the walls of their container.

The Calvin cycle is another name for the

When a solution is considered to have a high concentration of hydrogen ions (H+) is also considered to be? a) acidic b) basic c) neutral d) hot

Why does the sky change colors at sunset? 1 because the sun changes colors 2 because the atmosphere reflects colors 3 because long wavelengths are scattered the least 4 because short wavelengths are scattered the least

Consider the reaction N2 (g) + 3 H2 (g) 2 NH3 (g), which is exothermic as written. What would be the effect on the equilibrium position of adding N2 (g) ?

According to Table I, which equation represents a change resulting in the greatest quantity of energy released? 1. 2C (s) + 2H2 (g) - > C2H4 (g) 2. 2C (s) + 3H2 (g) - > C2H6 (g) 3. N2 (g) + 3H2 (g) - >2NH3 (g) 4. N2 (g) + O2 (g) - > 2NO (g)