Chemical Reactions Quiz

What are 3 of the 4 types of Chemical Reactions?

• synthesis

• decomposition

• combustion

• single replacement

Explain the Lab Report vocabulary: dependent variable, independent variable, control.

Give one example of a chemical reaction and a physical reaction.

What are reactants?

Name the parts of a chemical equation?

HCL + NaOH -----> NaCL + HOH is what type of reaction?

• synthesis

• decomposition

• combustion

• replacement

The best evidence for a chemical reaction occurring would be:

• The formation of new substances

• Change in state of a chemical (ex. from a solid to a liquid)

• Change in shape or form of a chemical 

Identify which is the result of a physical rather than a chemical change?

• leaves turning color in the autumn

• ice melting in the spring

• silver utensils tarnishing

• a metal fence rusting over time

Instead of words, chemical equations use . . . [select all that apply]

• Arrows

• Numbers

• Letters and Symbols

• Shapes

A substance with 2 oxygen atoms is combined with a substance with 1 oxygen atom to form one product. What is true of the product?

• 
  

  Some of the oxygen will evaporate into the air.

• There will be no oxygen in the product.

• There will be 6 oxygen atoms in the product.

• There will be 3 oxygen atoms in the product.