Exploring Types of Chemical Reactions

The video tutorial introduces chemical reactions, explaining how to identify them through signs like color change, heat, light, odor, precipitate formation, and bubbles. It covers the components of chemical equations, including reactants, products, coefficients, and states of matter. The tutorial then details five main types of chemical reactions: synthesis, decomposition, combustion, single replacement, and double replacement. Examples are provided, and a flowchart is used to help identify reaction types.

What is a sign that a chemical reaction has occurred?

• Change in color

• Change in shape

• Change in texture

• Change in size

Tags

NGSS.MS-PS1-2

What does the arrow in a chemical equation signify?

• Addition of reactants

• Subtraction of products

• Change from reactants to products

• Equal amounts of reactants and products

What does the symbol (aq) indicate in a chemical equation?

• Solid state

• Liquid state

• Gas state

• Dissolved in water

Which type of reaction involves two substances combining to form one substance?

• Decomposition

• Combustion

• Synthesis

• Single replacement

Tags

NGSS.MS-PS1-5

What is the result of a decomposition reaction?

• A substance combining with oxygen

• One substance forming two or more substances

• An atom replacing another atom in a compound

• Two substances forming one substance

Tags

NGSS.MS-PS1-5

What are the products of a combustion reaction?

• Carbon dioxide and water

• Carbon monoxide and water

• Oxygen and hydrogen

• Hydrogen and nitrogen

In a single replacement reaction, what happens?

• Two substances combine to form one substance

• A substance decomposes into simpler substances

• An atom replaces another atom in a compound

• Two compounds switch places

What is a double replacement reaction?

• Two substances combine to form one substance

• A substance decomposes into simpler substances

• An atom replaces another atom in a compound

• Two compounds switch places

Which type of reaction is represented by the equation: A + B -> AB?

• Combustion

• Decomposition

• Synthesis

• Single replacement

Tags

NGSS.MS-PS1-1

Using the flowchart, what type of reaction is represented by: MGO -> MG + O2?

• Decomposition

• Synthesis

• Combustion

• Single replacement