Chapter 1-9 Chemistry Douglas

Front

What is an exothermic process?

Back

A chemical reaction that releases heat energy to its surroundings.

Front

Is carbon a metal, nonmetal, or metalloid?

Back

Carbon is a nonmetal.

Front

What does temperature represent in terms of particle energy?

Back

Temperature represents the average kinetic energy of the particles that make up a material.

Front

What is a homogeneous mixture?

Back

A mixture where the different parts are not visible and are uniformly distributed.

Front

Identify the molecule: BF3 or H2O?

Back

BF3 is the identified molecule.

Front

What is an endothermic process?

Back

A chemical reaction that absorbs heat energy from its surroundings.

Front

Define a metalloid.

Back

A metalloid is an element that has properties of both metals and nonmetals.

Front

What is the difference between a homogeneous and heterogeneous mixture?

Back

A homogeneous mixture has a uniform composition, while a heterogeneous mixture has visibly different components.

Front

What is the significance of the atomic number?

Back

The atomic number indicates the number of protons in an atom's nucleus and defines the element.

Front

What is a chemical bond?

Back

A chemical bond is a lasting attraction between atoms that enables the formation of chemical compounds.