Open vs. closed systems

What is a conjugate base?

Consider the reaction below. If you start with 2.00 moles of C3H8 (propane) and 2.00 moles of O2, how many moles of carbon dioxide can be produced? C3H8 (g) + 5O2 (g) 3CO2 (g) + 4H2O (g). A) 8.00. B) 1.20. C) 6.00. D) 2.00.

A chemist performed a reaction in which two chlorine atoms form a compound with a magnesium atom through an ionic bond. Which statement is true about the compound the chemist made?

For measuring the volume of a liquid, beakers are generally: more accurate than graduated cylinders less accurate than graduated cylinders equally as accurate as graduated cylinders always used when highly accurate measurements of liquid volumes are

Iron displaces copper from a solution of a copper salt. The reaction is deemed as a redox reaction. Give reason.

The Second Law of Thermodynamics states that the total amount of entropy in the universe is

Which force acts an an object to move it from rest or a constant, straight-line motion? A-balanced B-unbalanced C-inertial D-along a straight line

When preparing a buret for use in lab, the buret must always be cleaned thoroughly. prior to being filled with solution, the buret is rinsed one last time. what is the buret rinsed with, and why?

Determine the mechanical energy of this object: a 1kg ball sits on a 10 meter high cliff a. 980j b. the ball isn't moving. so the mechanical energy is zero c. 98j d. 10j

Which are examples of acids? Check all that apply. A. Vinegar B. Drain cleaner C. Lemon juice D. Bleach