Calculate the number of moles of C2H6 (nC2H6) in 1.80*1023 molecules of C2H6.

Photosynthesis is the process by which most living things convert the chemical energy in glucose into more accessible chemical energy in ATP. A. True B. False

What is a reaction with a positive enthaply spontaneous

Which would have the longer wavelength, a photon with energy of 4.59 x 10^-19 J or a photon with energy of 3.01 x 10^-19 J

An element the has a low first ionization energy and good conductivity of heat and electricity can be classified as A) metal B) metalloid C) nonmetal D) noble gas

The CI-B-Cl bond angle in the BCl_3 molecule is O 180° O 90° O 120° 060° 109.5°

A penny has a mass of 2.50g and the moon has a mass of 7.35 X 10^22 Use this information to answer the questions below. Be sure your answers have the correct number of significant digits.

If a car tire has a diameter of 3232 inches, what is the approximate circumference of the tire?

9) Bettina spoke into a microphone during the school play to increase the sound of her voice so the audience could hear her speak.

Explain what happens to the average kinetic energy thermal energy and temperature of a substance when the particles in the substance slows down

Which of the following could be used to describe the rate of a reaction? change in time/change in concentration change in mass/change in concentration change in concentration/change in time change in concentration/change in mass