Optional Review Unit 1 -Matter: Elements, Compounds, & Mixtures

Front

What is an anion?

Back

An anion is a negatively charged ion that is formed when an atom gains one or more electrons.

Front

Which type of elements typically form anions?

Back

Nonmetals typically form anions.

Front

What is the formula for copper (I) phosphide?

Back

Cu₃P

Front

What is the formula for Lead II Phosphate?

Back

Pb₃(PO₄)₂

Front

What is the formula for Nitric Acid?

Back

HNO₃

Front

Which of the following is a nonmetal: zinc (Zn), potassium (K), calcium (Ca), or fluorine (F)?

Back

Fluorine (F) is a nonmetal.

Front

What is a compound?

Back

A compound is a substance formed when two or more different elements chemically bond together.

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that are not chemically bonded and can be separated by physical means.

Front

What distinguishes elements from compounds?

Back

Elements are pure substances that cannot be broken down into simpler substances, while compounds are made up of two or more elements chemically combined.

Front

What is the difference between a homogeneous mixture and a heterogeneous mixture?

Back

A homogeneous mixture has a uniform composition throughout, while a heterogeneous mixture has a non-uniform composition.