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Two 3.0 kg physical science textbooks on a bookshelf are 0.15 m apart. What is the magnitude of the gravitational attraction between the books?
(a) What is the force of gravity between two 1000 kg cars separated by a distance of 25 m on an interstate highway?
(b) How does this force compare with the weight of a car?
How do you know if a problem asking for the ph of a solution involves an acid or a base if it is not explicitly stated. Would you have to have had prior knowledge of which compounds are acids and which compounds are bases.
Using Hess's Law to Calculate an Unknown heat ^ H Nitrogen oxides undergo many interesting reactions in the environment and in industry. Given the following information, calculate H for the overall equation
How many mL of boiling water would it take to dissolve 23g of caffeine? If the solution was cooled to 25?C, how many grams of caffeine would recrystallize out
Problem- Construct a simulated 1H NMR spectrum for 1-chloropropane by dragging and dropping the appropriate splitting patterns into the boxes on the chemical shift baseline, and by dragging integration values into the small box above each signal.
Potassium sulfate solution reacts with barium bromide solution to produce a precipitate of barium sulfate and a solution of potassium bromide. State the molecular equation for this reaction. Then state the corresponding net ionic equation.
Problem- If I use a 5-hydroxy pental with acid to get a cyclic compound which I believe to be oxane with oh group next to it (can't think of the name of the compound off the top of my head) then where would the equilibrium lie
The soution in contact with the graphite electrode consists of dissolved Sn(NO3)2. The solution in contact with the copper electrode consists of dissolved CuNO3.
A certain hybrid has a mileage rating of 49 miles per gallon. if the car makes a trip of 263 miles, how many gallons of gasoline will be used? Show work please, it would be appreciated
rust on an automobile door contains fe2o3s. the balanced equation representing one of the reactions between iron in the
Calculate the size of the quantum involved in the excitation of an electronic motion of frequency 1.0 X Hz. Express the results in kilojoules per mole. I know how to get to E, it is Help greatly appreciated.
What is the pressure of the gas in this mercury manometer if h = 69 mm and atmospheric pressure is 749 mmHg
when 76.0 grams of calcium and 36.9 grams of nitrogen gas undergo a reaction that has a 90.0 yield what mass of calcium
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