Why is it essential for a calorimetry to be an insulated (closed) system?

A. The heat exchange must originate from only the reaction (system).

B. Thermal insulation minimizes energy loses to the atmosphere.

C. A and B

D. None of the Above

Determine the work done by an ideal gas while expanding by a volume of 0.25 L against an external pressure of 1.50 atm (assume adiabatic conditions, i. e., no heat exchange during the expansion).

Which statement describes what happens when a rubbed with a wool cloth? -Electrons move from the atoms in the cloth to the atoms in the balloon, causing the balloons to have a negative charge -Electrons are shared equally between the atoms of the

2. The particles in the oxygen gas animation show many different kinds of motions. Identify three different kinds of motions/interactions you observe. Which motions create pressure on the walls of the container

What were the units of light energy emitted by blackbody radiation originally called?

If the mass of two object increases, what happens to the force of gravity between them? a. it increases b. it stays the same c. it decreases d. it could increase or decreases depending on the shape of the objects

How are natural polymers and synthetic polymers similar? A) Both are made up of phosphates and organic bases B) Both serve important roles in producing amino acids C) Both are made up of monomers that are linked by covalent bonds

How can the solubility of a solution be increased? By increasing the temperature. By decreasing the temperature. By increasing the amount of solvent added. By decreasing the amount of solvent added.

Read the scenario. Ammonia is obtained from a reaction between nitrogen and hydrogen gases. The mole ratio between hydrogen gas and nitrogen gas is 3 to 1, and the mole ratio between ammonia and hydrogen gases is 2 to 3.

Transmutation is the process of transforming one element into another through nuclear reactions. What will be the nuclide produced when Cf-249 is bombarded with C-12? Four neutrons are also produced by the reaction.

State the formula for density in words and mathematical symbols.