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Front

What happens to particles in an object at higher temperatures?

Back

Particles in an object move faster.

Front

What are spectator ions in a chemical reaction?

Back

Spectator ions are ions that do not participate in the chemical reaction and remain unchanged.

Front

Identify the spectator ions in the reaction: CuCl2(aq) + NaOH(aq) → Cu(OH)2(s) + NaCl(aq).

Back

Na+ and Cl-.

Front

In which regions does temperature increase?

Back

Regions A, C, and E.

Front

Describe the substance at letter A in a phase diagram.

Back

Solid.

Front

What is the definition of a solid?

Back

A state of matter characterized by particles that are closely packed together and have a fixed shape.

Front

What is the definition of a liquid?

Back

A state of matter where particles are close together but can move past each other, allowing it to take the shape of its container.

Front

What is the definition of a gas?

Back

A state of matter where particles are far apart and move freely, filling the entire volume of their container.

Front

What is the role of Na+ in the reaction CuCl2(aq) + NaOH(aq)?

Back

Na+ is a spectator ion that does not participate in the formation of the precipitate.

Front

What is the definition of temperature?

Back

A measure of the average kinetic energy of the particles in a substance.