Mid-Unit 2 review

Front

What is a Single Replacement reaction?

Back

A chemical reaction where one element replaces another in a compound.

Front

What can you change when balancing chemical equations?

Back

You can only add, change, and remove coefficients.

Front

What is a Double Replacement reaction?

Back

A chemical reaction where ions in two compounds switch places.

Front

What is the formula for dinitrogen tetroxide?

Back

N₂O₄

Front

How do you balance the equation: ___NH₃ + ___O₂ --> ___NO + ___H₂O?

Back

4NH₃ + 5O₂ --> 4NO + 6H₂O.

Front

What is a Coefficient in a chemical equation?

Back

A number placed in front of a chemical formula to indicate how many molecules are involved.

Front

What is a Subscript in a chemical formula?

Back

A small number written after an element symbol that shows how many atoms of that element are in a molecule.

Front

What is the difference between Synthesis and Decomposition reactions?

Back

Synthesis reactions combine elements to form a compound, while Decomposition reactions break down a compound into simpler substances.

Front

What is the Law of Conservation of Mass?

Back

In a chemical reaction, mass is neither created nor destroyed; it is conserved.

Front

What does it mean to balance a chemical equation?

Back

To ensure that the number of atoms of each element is the same on both sides of the equation.