G7 CH8 - Physical and chemical reaction

When iron atoms bond with sulfur atoms, it is a chemical change (True/False)

When an acid is added to a metal it bubbles and gives off a gas. What is the name of the gas?

here oxygen reacts with hydrogen to form water. The elements that make this compound are ________

When you cook an egg, it is a chemical change. (True/False)

In a physical change, no new substances are formed. (True/False)

When your cells use food to release energy, it is a physical change (True/False)

here oxygen reacts with hydrogen to form water. The compound that is made in this reaction is ________

In the circles of this particle diagram, write the symbols of the elements that make up the product.

Write the name of the product in the space below the diagram.

When ice melts to form water, it is a chemical change. (True/False)

When you let off fireworks, it is a physical change. (True/False)