How is energy Associated with food stored

Which sample of copper has atoms with the lowest average kinetic energy? 1. 10. g at 45°C 2. 20. g at 35°C 3. 30. g at 25°C 4. 40. g at 15°C

10 gram of CaCO3 contains how many moles? a) 1 b) 0.01 c) 0.1 d) 0.001

Aluminum metal reacts with aqueous iron (II) chloride to form aqueous aluminum chloride and iron metal.

Glucose, C6 H12O6, is used as an energy source by the human body. The overall reaction in the body is described by the equation C6H12O6 (aq) + 6O2 (g) ⟶ 6CO2 (g) + 6H2O. 1) Calculate the number of grams of oxygen required to convert 38.

Oxygen in air can be removed using

Evaluate - if you put a scale in an elevator and weigh yourself as you ascend and the descend, does the scale have the same reading in both instances?

Why would you add a catalyst to something

A sample of the sugar d-ribose (C5H10O5) of mass 0.727 g was placed in a calorimeter and then ignited in the presence of excess oxygen. The temperature rose by 0.910 K. In a separate experiment in the same calorimeter, the combustion of 0.

the volume of an ideal gas in a container is 2.0 L what will be the volume of the gas if the pressure on the container is doubled while the temperature is reduced from 400 K to 200 K

Which of the Following Will result in increasing temperature of s gas