What are the components of a word equation in a chemical reaction?

Reactants and products are key components.

• Reactants appear on the left side.

• Products are shown on the right.

• An arrow indicates reaction direction.

Fill in the blank: A particle diagram shows atoms as ___ and illustrates their arrangement in reactants and products.

Circles

True or False: The properties of compounds are identical to the properties of the elements that form them.

False. The properties of compounds differ from those of their constituent elements.

Riddle: I represent a chemical reaction with names, but I don’t show the arrangement. What am I?

A word equation

What must be true about the number of atoms in a particle diagram before and after a reaction?

The same number of each type of atom must be present on both sides of the diagram.

Complete the sentence: Magnesium and oxygen react to form the compound ___.

Magnesium oxide

Which provides more detailed information about the arrangement of atoms in a chemical reaction: a word equation or a particle diagram?

A particle diagram provides more detailed information about the arrangement of atoms.

Multiple Choice: In a chemical reaction represented by a word equation, where are the products located? A) Left side B) Right side C) Above the arrow D) Below the arrow

B) Right side

Compounds can only be separated into elements through ___ reactions.

Chemical

What indicates a chemical reaction has occurred?

Temperature changes, reactants being used up, products being formed, color changes, and precipitation are indicators of a chemical reaction.

To test for hydrogen gas, you should hold a lighted splint near the gas and listen for a ___ sound.

'pop'

What happens to limewater when carbon dioxide is passed through it?

It turns milky white.

Riddle: I am a gas that makes flames dance, and I relight splints; what am I?

Oxygen

Fill in the blank: Hydrogen is highly ___ and burns quickly.

Flammable