How much electric energy does a 40 W light bulb use if it is left on for 12 hours?

Which of the following describes an exothermic reaction? A + B Imported Asset AB + heat A + BΔ Imported Asset AB heat + BC Imported Asset B + C B + heat + CD Imported Asset BD + C

Why is mn02 added to the decomposition of H2O2

Name the following compound: CH3 - CH2 - CH2 - CH2 - CH2 - CH2 - CH2 - CH3

What happens when aluminum fills its valence shell? A. three electrons are lost creating AL+3 B. three electrons are gained creating AL+3 C. three electrons are gained creating AL-3 D. three electrons are gained creating AL-3

Imagine you are explaining the human toll of making rechargeable batteries to your friends. what would you tell them

With respect to composition, how is the compound made from hydrogen and oxygen different from mixtures of these two elements?

How should scientist respond when new evidence that challenges current is presented?

Consider the following reaction, equilibrium concentrations, and equilibrium constant at a particular temperature. Determine the equilibrium pressure of H2. D2 (g) + H2 (g) ⇌ 2 HD (g) Kp = 1.80 P (D2) eq = 1.1 * 10-3 atm P (HD) eq = 2.7 * 10-3 atm

Find δe for the change in state of 1.0 molh2o (l) at 79 ∘c to h2o (g) at 116 ∘c. the heat capacity of h2o (l) = 75.3 j/molk, heat capacity of h2o (g) = 25.0 j/molk, and the heat of vaporization of h2o is 40.7*103j/mol at 100 ∘c.

Balloon A started with a volume of 1.76 L. The temperature of the room the balloon was in was 295 K. The balloon was heated to a temperature of 253.15 K. What is the new volume?