For the skeletal chemical equation C2H4(g) + O2(g) → CO2(g) + H2O(g)
what is the coefficient of C2H4 in the balanced
equation?

A. 4
B. 6
C. 8
D. 5
E. 1
F. 7

1) this is the structure in the cell nucleus that houses a cell's genetic information

Which best describes how johannes kepler developed his laws of planetary motion

Achemistry student needs to standardize a fresh solution of sodium hydroxide. he carefully weighs out of oxalic acid , a diprotic acid that can be purchased inexpensively in high purity, and dissolves it in of distilled water. the student then titrates the oxalic acid solution with his sodium hydroxide solution. when the titration reaches the equivalence point, the student finds he has used of sodium hydroxide solution.calculate the molarity of the student's sodium hydroxide solution. be sure your answer has the correct number of significant digits.