Chemistry FINAL EXAM

Front

What is the chemical formula for Tetrasulfur pentoxide?

Back

S₄O₅

Front

What is a period in the periodic table?

Back

A side to side row on the table.

Front

Express the following in scientific notation: 0.000457

Back

4.57 x 10⁻⁴

Front

If all masses are 20g, which material has the GREATEST volume? (Volume = mass/density)

Back

Vinegar

Front

What is the definition of density?

Back

Density is the mass of an object divided by its volume.

Front

What is the chemical symbol for Gold?

Back

Au

Front

What is the pH scale used for?

Back

The pH scale measures the acidity or basicity of a solution.

Front

What is a covalent bond?

Back

A covalent bond is a chemical bond formed by the sharing of electrons between atoms.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of one type of atom, while a compound is made of two or more different types of atoms chemically bonded together.

Front

What is the law of conservation of mass?

Back

The law states that mass is neither created nor destroyed in a chemical reaction.