Chemical Reactions

What are Chemical Reactions?

• It's when you mix substances.
• a process in which atoms rearrange to form new substances
• When something bubbles.
• letter and numbers showing the types and number of atoms

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

The Law of Conservation of Mass states

• that matter exists in all states and reacts the same
• that matter can only be changed into new substances by introducing a catalyst
• that matter exists in the same state throughout any chemical change
• that matter cannot be created or destroyed and that the mass of the products must equal the mass of the reactants

Tags

NGSS.MS-PS1-5

What is the left part of a chemical equation called?
H_{2 +} O → H₂O

• Reactants
• Products 
• Yields 
• Chemical Equation 

Tags

NGSS.MS-PS1-5

What are the products of the chemical reaction pictured?

• CH₄ and CO₂

• CH₄ and O₂

• CO₂ and H₂O

• O₂ and H₂O

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

The reactants are on the left side of the chemical equation.

• True
• False

Tags

NGSS.MS-PS1-5

Identify the reactant(s) and product(s) of the reaction.

• All three are reactants and none are products.
• Hydrogen and water are the reactants, and oxygen is the product.
• Water and oxygen are the reactants, and hydrogen is the product.
• Hydrogen and oxygen are the reactants, and water is the product.
  

How many reactants are in A + B ---> C ?

• 1

• 2

• 3

• 4

How many products are in A + B ---> 2C

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-5

Which compounds are the PRODUCTS of this reaction?

• CO₂ + H₂O

• C₆H₁₂O₆ + O₂

• C₆H₁₂O₆ + CO₂

• H₂O + O₂

Tags

NGSS.MS-PS1-2

NGSS.MS-LS1-6

NGSS.MS-LS1-7

This is used to represent the number of each atom being represented. 

• A Exponent
• The Coefficient
• A Molecule
• The Subscript

Tags

NGSS.MS-PS1-1