H2 + N2 - - - > NH3

For this unbalanced chemical equation, what is the coefficient for hydrogen when the equation is balanced?

A. 1

B. 2

C. 3

D. 4

Theory of evolution dictionary

A solution of ammonia NH3 (aq) is at equilibrium. How would the equilibrium change if NH4 + were removed from the solution?

A change from one state of matter to another involves the transfer of a. heat. b. atoms. c. phases. d. density.

What 3 elements would you expect to have similar properties?

What makes the atomic radius change down a column of the periodic table? O A. The greater number of total electrons, the larger the atomic radius. O B. The more valence electrons listed, the larger the atomic radius. C.

What is the molarity of a solution containing 45.78gMgCl2 dissolved in 3.00L of solution?

What kind of wavelength do television signals have? a. Short c. Long b. Intermediate d. Very rapid

What gene is responsible for tumor suppression? A. beta - galactoside B. p53 C. alpha goblin D. beta goblin

How does ur body maintain constant tempature on a hot day?

1. What is the probability of rolling a five on one die three times in a row? 2. The allele for a cleft chin, C, is dominate among humans. Using a punnet square, what are the results of a cross between parents with genotypes Cc and cc