E Br., J Br CH3 HO" CH3 H. CH3 „Mẹ HO CH3 Br OH Br OH CH3

560 Cal to J

You will find the final temperature when 5.00 grams of aluminum at 425℃ is placed in 50.0 grams of water at 19.5℃. Aluminum has a specific heat capacity of 0.900 J/g ℃. And water has a specific heat capacity of 4.184 J/g℃. Now set –q(hot) = q(cold) and solve for the final temperature (as done in class) and then give the calculator answer for the final temperature! (Give 7 digits). Select one: a. 8.755643 ℃ b. 26.35996 ℃ c. 12.39981 ℃ d. 28.64197 ℃ e. 29.70363 ℃ f. 10.58574 ℃ g. 30.47036 ℃ h. none of these i. 26.81358 ℃ j. 28.03884 ℃

H3C = H₂ Pd/C H3C- H ind Mes H 4

Convert the (US) price of gas of $3.56/gallon into (British) E/L. Hints: 1 £ = $1.35; 1 gallon = 3.785 L. Do not include units in your submitted answer.

Many chemistry problems result in equations of the form x² (0.329 - x) When this equation is solved, the two values of the unknown x are 1.66 x 10-2 = and

Perform the indicated conversion: 3.06 x 10³ cal = J A 1.28 x 104 J B 1.37 x 10-3 12.8 J D 7.31 x 105 731 J

Just #2 please

400 380 360 340 320 300 280 260 240 220 200 180 160 - 140 120 - 100 80 60 40 20 -20 - -40 -60 - -80 40 80 120 Heat (J) Temperature (°C)

A(s)+3B(l)−⇀↽−2C(aq)+D(aq)A(s)+3B(l)↽−−⇀2C(aq)+D(aq) in terms of [A],[A], [B],[B], [C],[C], and [D],[D], as needed. Note that Kc,Kc, which is sometimes symbolized as Keq,Keq, denotes that the equilibrium constant is expressed using molar concentrations. For this question, KcKc means the same thing as Keq.Keq. Kc=Kc=