08 Semester 1 Exam Review

1 SeCl6 + 1 O2 → 1 SeO2 + 3 Cl2

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

Slicing bread is an example of a physical change.

Negative acceleration means that your object is slowing down.

1 SnO2 + 2 H2 → 1 Sn + 2 H2O

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

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

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.

Baking bread is an example of a chemical change.

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