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Supposed to Children's push horizontally, but exactly opposite directions, on a third child and wagon. The first child exhort exerts a force of 75.0 n, the second a force of 95.0 n, friction is 12.0 n, and the mass of the third child plus wagon is 21.0 kg. What is the system of interest if the acceleration of the child in the wagon is to be calculated? Check all that apply. The child in the wagon? The child outside the wagon? The wagon? Calculate the acceleration. What would the acceleration be if friction is 20.0?
Using your value of the first-order rate constant, calculate the rate of reaction after approximately 15, 45 and 60 minutes has passed?
5.0 kg of hydrogen is reacted with 31 kg of oxygen. The experiment yields 28 kg of water. Calculate the percent yield of the reaction.
Rank the following atoms (from smallest to largest) based on which would have the largest second ionization energy?
sammy put away 10 of his 75000 per year salary for the 45 years he is working into 401k and ira savings plans and
when the following equation is completed and balanced for the reaction in an acidic solution what is the proper coefficient for H+, Zn(s)+ Cr2O7^2-(aq)---> Zn^2+ (aq)+ Cr^2+(aq)
A sample containing 7.45 grams of KCl is dissolved in sufficient distilled water and reacted with 1000.0 mL 0.300M AgNO3 solution. Excess silver nitrate solution reacted with the metallic copper according to the following reaction:
how many liters of chlorine would it take to shock a pool with the surface area of 24.9 m^2 and an average depth of 4.2 ft?
if 164 of wet h2 is collected over water at 24c and a barometric pressure of 739 how many grams of zn have been
Most community water supplies contain 0.5 ppm chlorine added for purification. What mass of chlorine must be added to 1500. L of water to reach this level. (Hint: the density of water is 1.00 g/mL)
Assuming that N2 obeys the Van der Waal's equation, determine the Boyle temperature of 1 mol of N2 and determine the percent error in the answer knowing that the experimental value of the Boyle temperature
Converting between Units of Pressure Gases are different from solids and liquids. In a sample of gas, the molecules are far apart. The gas molecules also move around and collide with each other as well as with the walls of the container. These col..
Determine the numbers of oxygen molecules are required for each molecule of C 6 H 12 O 6 glucose that is oxidized if Glucose is oxidized by molecular O 2 to CO 2 and H 2 O?
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