08 Semester 1 Exam Review

Front

What is the balanced equation for SeCl6 + O2?

Back

1 SeCl6 + 1 O2 → 1 SeO2 + 3 Cl2

Front

What is a beaker used for?

Back

A beaker is used to measure (but not precisely), heat, and mix large amounts of liquids.

Front

What is an example of a physical change?

Back

Slicing bread is an example of a physical change.

Front

What does negative acceleration indicate?

Back

Negative acceleration means that your object is slowing down.

Front

What is the balanced equation for SnO2 + H2?

Back

1 SnO2 + 2 H2 → 1 Sn + 2 H2O

Front

Define a chemical equation.

Back

A chemical equation is a symbolic representation of a chemical reaction, showing the reactants and products.

Front

What is the purpose of a graduated cylinder?

Back

A graduated cylinder is used to measure the volume of liquids accurately.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters the form of a substance but not its chemical composition, while a chemical change results in the formation of new substances.

Front

What is an example of a chemical change?

Back

Baking bread is an example of a chemical change.

Front

What does it mean to balance a chemical equation?

Back

Balancing a chemical equation means ensuring that the number of atoms for each element is the same on both sides of the equation.