When 100 g of C6H16N2 (used in nylon) are decomposed, 62.01 g of C, 13.87 g of H, and 24.11 g of N are produced. Find the percent composition.

An engineer is trying to create a fast reaction in a fuel mixture. Which should she do? A. Decrease the amount of fuel B. Lower the temperature of the engine C. Add a catalyst to the fuel mixture D. Lower k for the fuel reaction

Red light with a wavelength of 670.8 nm is emitted when lithium is heated in a flame What is the frequency of this radiation?

Which pair of elements is most likely to form an ionic bond? A:hydrogen and helium B:lithium and potassium C:potassium and iodine D:iron and zinc

A testable explanation that's supported or refuted is called an

62 grams of Zn (C2H3O2) 4 are dissolved to make a 1.5 M solution. How many milliliters of water are needed?

1. Simplify. | A. O 16 B. O C. 04 D. O

What is the (H+), if the pH of a solution is 3.20?

In an open system, the vapor pressure is equal to the outside air pressure. T or F?

Could acetic acid be used in the esterification, instead of acetyl chloride? Why or why not?

9. In a sample of gas, what causes pressure? Answer in a completesentence.