25.00 ml of 0.500 M Na2CO3 at 20.00 ℃ is mixed with 29.00 ml of 0.600 M HCl, in a coffee-cup calorimeter at 20.00 ℃. After stirring and allowing the reaction to go to completion, the final temperature is 26.50 ℃. As the gaseous CO2 forms from the reaction under constant atmospheric pressure of 0.988 atm, the volume changes by 2.6 L per 1 mol of CO2. Assume the final solution has the density of 0.982 g mL and specific heat capacity of 4.184 J g • ℃ . Calculate the change in internal energy ΔE, of the reaction (in kJ mol).

water is used to store them because it would keep the radiation from getting out in the open and causing harm to the workers

a. hope i'm right

explanation:

question: ray weighs 100 kilograms, his wrestling partner, bobby, weighs 50 kilograms. if ray moves at 4 m s , how fast will bobby have to run at him to apply an equal amount of kinetic energy?

answer: 8 m/s he needs to run twice as fast to keep up so he has some work to do

explanation:   if the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

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(jacemorris04)