Chemical Reactions Pre-Assessment

How many elements are in C₆H₁₂O₆?

• 1
• 2
• 3
• 4

Tags

NGSS.MS-PS1-1

 In the formula: C + O2 ---> CO2, O2 is a ____________________.

• Product
• Solution
• Answer
• Reactant

Tags

NGSS.MS-PS1-5

___________________ are the elements are compounds that leave (are formed in) a chemical
reaction.

• Polymers
• Bonds
• Reactants
• Products

Tags

NGSS.MS-PS1-2

Occurs when one element replaces another one in a compound

• Synthesis
• Single replacement
• Double replacement
• Decomposition

Compounds break down into simpler substances in this type of reaction.....

• Double Replacement
• Single Replacement
• Synthesis
• Decomposition

This image represents

• a double replacement reaction
• a decomposition reaction
• a single replacement reaction
• a complex compound reaction

Tags

NGSS.MS-PS1-2

What is released in a combustion reaction?

• Oxygen and water
• Oxygen and carbon dioxide
• Carbon dioxide and water
• Water and hydrogen

What is the arrow in a chemical equation...
H_{2 +} O --> H₂O

• Reactants
• Products 
• Yields 
• Chemical Equation 

Name this reaction, Cl₂ + 2KI _-->  I₂ + 2KCl

• Synthesis
• Single Replacement
• Double Replacement
• Decomposition

How many atoms of carbon (C) are in C₆H₁₂O₆?

• 3
• 6
• 12
• 24

Tags

NGSS.MS-PS1-1