Mid -Term Review H. Chemistry 24/25

Front

What is a non-metal?

Back

A non-metal is an element that is typically dull, brittle, and a poor conductor of heat and electricity.

Front

Calculate the molar mass of CO₂.

Back

The molar mass of CO₂ is 44 g/mol.

Front

What type of bonding occurs between a metal and a nonmetal?

Back

Ionic bonding occurs between a metal and a nonmetal.

Front

How do you balance the equation P₄ + O₂ → P₂O₃?

Back

The balanced equation is 1 P₄ + 3 O₂ → 2 P₂O₃.

Front

What type of reaction is HCl + AgNO₂ → AgCl + HNO₂?

Back

This is a Double Replacement reaction.

Front

What is the definition of ionic bonding?

Back

Ionic bonding is the electrostatic attraction between oppositely charged ions, typically formed when a metal donates electrons to a nonmetal.

Front

What are metalloids?

Back

Metalloids are elements that have properties intermediate between metals and nonmetals.

Front

What is the significance of balancing chemical equations?

Back

Balancing chemical equations ensures that the law of conservation of mass is obeyed, meaning the number of atoms of each element is the same on both sides of the equation.

Front

What is a chemical reaction?

Back

A chemical reaction is a process that leads to the transformation of one set of chemical substances to another.

Front

What is the difference between a single replacement and a double replacement reaction?

Back

In a single replacement reaction, one element replaces another in a compound, while in a double replacement reaction, the ions of two compounds exchange places.