Answer the following question given this paragraph: External forces are forces that act on the system from outside. In our previous example, external forces include the force of gravity acting on both cars (because the other part of the force pair, the pull of gravity the Earth experiences coming from the cars, is not included in the system) and the forces of friction between the tires and the road. Q: What do we call forces that act on the system from outside? A:
OPTIONS:
- material
- internal
- static
- external

Answer: external

Question: Answer the following question given this paragraph: The way in which a reaction is written influences the value of the enthalpy change for the reaction. Many reactions are reversible, meaning that the product(s) of the reaction are capable of combining and reforming the reactant(s). If a reaction is written in the reverse direction, the sign of the changes. For example, we can write an equation for the reaction of calcium oxide with carbon dioxide to form calcium carbonate. Q: The reaction of calcium oxide with carbon dioxide forms what? A:
OPTIONS:
- nitrogen carbonate
- carbon monoxide
- nitrogen
- calcium carbonate
Answer: calcium carbonate

input with options: Answer the following question given this paragraph: Internal Energy U We can think about the internal energy of a system in two different but consistent ways. The first is the atomic and molecular view, which examines the system on the atomic and molecular scale. The internal energy U of a system is the sum of the kinetic and potential energies of its atoms and molecules. Recall that kinetic plus potential energy is called mechanical energy. Thus internal energy is the sum of atomic and molecular mechanical energy. Because it is impossible to keep track of all individual atoms and molecules, we must deal with averages and distributions. A second way to view the internal energy of a system is in terms of its macroscopic characteristics, which are very similar to atomic and molecular average values. Macroscopically, we define the change in internal energy. Q: What type of energy of a system is the sum of the kinetic and potential energies of its atoms and molecules? A:
OPTIONS:
- external energy u
- primary energy u
- deep energy u
- internal energy u
output: internal energy u

Q: Answer the following question given this paragraph: The trachea , or wind pipe, is a long tube that leads down to the chest. Q: What's the other term for your wind pipe? A:

OPTIONS:
- cornea
- cochlea
- esophagus
- trachea

A: trachea

input: OPTIONS:
- even number
- four
- two
- one Now, answer this question: Answer the following question given this paragraph: Q: Urea and carbon dioxide are molecules with how many carbon atoms? A:
A:
output: one

Question: Answer the following question given this paragraph: A: Homogenized milk is a colloid. The particles in the milk are large enough to seethat's why milk is white instead of clear like water, which is the main component of milk. However, the particles are not large enough to settle out of the mixture. Q: What is the main component of milk? A:
OPTIONS:
- fat
- lactose
- proteins
- water
Answer:
water