A 4o kg skier starts at the top of a 12 meter high slope at the bottom she is traveling 10 m/s how much energy does she lose to friction?

A; 2,704J

B; She dosent lose any because mechanical energy is always conserved

C; 2,000J

D; 4,704J

You intend to perform the double aldol condensation reaction in this week's experiment using Ketone X and Aldehyde Y. You mix 0.3 moles of Ketone X with 0.4 moles of Aldehyde X. What is your theoretical yield in moles? Round to the nearest tenth 2.

How is a pure substance different from a mixture

How many hydrogen atoms are in 2NH3

The single most important ingredient in a good beer is high-quality A. yeast. B. water. C. malt. D. hops.

Which statement describes the stability of the nuclei of potassium atoms

What is the mass, volume, density, and substance for Block C:

Which factors affect electronegativity? A. Number of electrons and atomic radius B. Number of unshielded electrons and density of the element C. Atomic radius and number of unshielded protons D. Density of the element and atomic radius

What is the difference between an amide and an amine? And what is a substituted amide?

Balance the following chemical equation: / text{CH}_ 4 + CH 4 + start text, C, H, end text, start subscript, 4, end subscript, plus / text{O}_ 2 / rightarrow 2 →start text, O, end text, start subscript, 2, end subscript, right arrow / text{CO}_2 +

How did the invention of the spectroscope in 1859 change the science of chemistry