Chemistry I - Semester 2 Final Review

How many carbon atoms are in propane?

• 1
• 2
• 3
• 4

Tags

NGSS.MS-PS1-1

Which of the following elements must be present in any organic compound?

• Carbon
• Oxygen
• Potassium
• Hydrogen

Tags

NGSS.HS-LS1-6

Name this alkane

• Methane
• Ethane
• Propane
• Butane

Tags

NGSS.MS-PS1-1

Combustion is when a __________ reacts with oxygen

• petrol
• fuel
• fire triangle
• carbon dioxide

The word equation for combustion is: fuel + oxygen --> water + ________ __________

• Carbon dioxide
• Limewater
• Carbon
• Carbon monoxide

Which of these is NOT a sign that a chemical change has occurred? 

• A loss of transparency 
• An unexpected color change
• A temperature change
• The formation of a precipitate

Tags

NGSS.MS-PS1-2

In a chemical reaction, bonds are broken and new bonds are formed that create new substances. The bonds that are broken are called what?

• Reactants
• Products
• Atoms
• Catalysts

Tags

NGSS.MS-PS1-2

How many Al atoms are in this compound?         4Al₂O₃

• 2
• 8
• 6
• 4

Tags

NGSS.MS-PS1-1

Which is the name of the kind of solid substance formed in this figure?  

• aqueous 
• precipitate
• acid
• synthesis 

Tags

NGSS.MS-PS1-2

An element plus additional element reacts to form one product is an example of which type of chemical reaction? 

• combustion
• decomposition 
• synthesis 
• single replacement