Chemical reactions H

In a ___________change, a substance changes into a different substance.

• Physical

• Chemical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What are reactants?

• The chemicals that start the reaction.

• The chemicals that the reaction produced.

• The chemicals that are on the right side of the arrow.

Tags

NGSS.MS-PS1-5

Always starts with a Hydrocarbon that reacts with oxygen and produces carbon dioxide and water. 

• Decomposition
• Synthesis
• Combustion
• Single Replacement

Tags

NGSS.MS-PS1-5

Identify the reaction type:

C₂H₆ + O₂ --> CO₂ + H₂O

• Double replacement

• Synthesis

• Acid base

• Combustion

Tags

NGSS.MS-PS1-2

Identify the reaction type for the following equation:

K + F₂ --> KF

• Double replacement

• Single Replacement

• Synthesis

• Decomposition

Tags

NGSS.MS-PS1-1

Identify the type of reaction:

ZnCl₂ + Mg --> Zn + MgCl₂

• Precipitate

• Single Replacement

• Double Replacement

• Decomposition

Identify the reaction type:

NaCl + KOH --> KCl + NaOH

• Double replacement

• Combustion

• Synthesis

• Decomposition

Tags

NGSS.MS-PS1-2

Identify the reaction type:

H₂O₂ --> H₂O + O₂

• Decomposition

• Synthesis

• Combustion

• Acid Base

The Best Friend's Club uses "invisible ink" to write notes to each other. The invisible ink is actually lemon juice that is clear when it dries on paper, but turns brown when a club member holds a burning candle under the paper. Once it is heated, it is never invisible again.
 What type of change is occurring when the paper is heated?

• chemical change
• elemental change
• physical change
• temperature change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

Shredding paper is an example of a

• chemical change

• physical change

• physical property

• chemical property