LEAP 2025 Science Grade 8 Chapter 8

LEAP 2025 Science Grade 8 Chapter 8 Sample

1 pt
1.

Explain the difference between a chemical formula and a chemical equation.

1 pt
3.

Magnesium block is called a pyrophoric metal because

1 pt
4.

You tear a tee shirt into small pieces and then burn the pieces. Which of the following statements are correct?

1 pt
6.

An exothermic reaction is expressed in this way.

1 pt
7.

Express one of the following in a graph: Endothermic reaction or Exothermic reaction. Include the following details: the curved line for Reactants and Products, the labels (reactants and products), direction of energy, direction of reaction, energy released or absorbed. It is not necessary to include the letters X, Y or Z.