A Molecular Approach to Chemistry

What type of model is shown?

• Ball and stick

• Space filling

• Structural formula

• none of the above

Tags

NGSS.MS-PS1-1

How many elements are in this model of Calcium chloride?

• 2

• 3

• 1

Tags

NGSS.MS-PS1-1

What is the number of molecules shown?

• 3

• 2

• 1

Tags

NGSS.MS-PS1-1

What type of model is this?

• atomic

• ball and stick

• structural formula

• space filled

Tags

NGSS.MS-PS1-1

Is the chemical formula above an ELEMENT, COMPOUND or MIXTURE? 

• Element
• Compound
• Mixture

Tags

NGSS.MS-PS1-1

Is the chemical formula above an atom, compound, or element?

• Element

• Compound

• atom

Tags

NGSS.MS-PS1-1

What ELEMENTS are present in the chemical formula: CH₄

• Carbon and Helium
• Carbon and Hydrogen
• Calcium and Hydrogen
• Copper and Helium

Tags

NGSS.MS-PS1-1

What is the SMALL number in a chemical formula known as?

• Coefficient
• Subscript

What is the BIG number preceding a chemical formula known as?

• Coefficient

• Subscript

What number identifies the COEFFICIENT in the chemical formula: 3CH₄

• 3

• 4