Kai was 200 meters north of the library when he remembered he had to return some books to the library. it took him seconds to do the round trip. which best describes kais rountrip

Consider the gas-phase reaction: N2 (g) + 3H2 (g) ⇆ 2NH3 (g) , for which Kp = 43 at 400 K. If the mixture is analyzed and found to contain 0.18 bar of N2, 0.36 bar of H2 and 0.

A liter of the gas mixture at equilibrium contains 0.0045 mol of N2O4 and 0.030 mol of NO2 at 10C. Write the expression for the equilibrium constant (Keq) and calculate the value of the constant for the reaction.

What element/compounds are used in the melting of ice?

The tendency of an element to react is closely related to a. its atomic mass. b. attractions between its atoms. c. the number of valence electrons in atoms of the element. d. the ratio of protons to neutrons in atoms of the element

Why is the nacl extracted with water three times?

Why should distilled water be used when conducting chemical tests? Select all that apply. O Distillation removes most chemicals present in tap water that could give us false results.

2. How can you use mass and volume to find density of a substance?

Grayson wants to build an inexpensive shelter at his bus stop that he can stand in when it rains. What material would be best for building a shelter that is both strong and waterproof

A sample of gas has a volume of 0.600 L at a temperature of 303 k. If the volume is increased to 0.900 L, what is the new temperature?

What is the correct name of the compound Hg2CrO4? (a) Mercury (l) chromate (b) Mercury (ll) chromate (c) Mercury dichromate (d) Dimercury chromate (e) Monomercury chromate