Drawing Molecules

Which diagram shows the correct energy levels for hot and cold water?

• A

• B

• C

• D

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

A student creates a ball-and-stick model to represent the atomic scale of a substance. Which of these best describes the model?

• 1 molecule with 10 atoms

• 1 element with 10 molecules

• 10 molecules representing 10 elements

• 10 elements representing 10 molecules

Tags

NGSS.MS-PS1-1

Structural differences between different chemicals can be represented in models of the particles. Which drawing BEST represents a compound?

• 
• 
• 
• 

Tags

NGSS.MS-PS1-1

H₂O is a compound molecule.

• TRUE

• FALSE

Tags

NGSS.MS-PS1-1

Group of atoms bonded together

• Mixture

• Compouns

• Atom

• Molecules

Tags

NGSS.MS-PS1-1

What is the picture displayed?

• atom

• element molecule

• compound molecule

Tags

NGSS.MS-PS1-1

This picture represents which of the following?

• elemental molecule

• compound molecule

Tags

NGSS.MS-PS1-1

Which of the following molecular drawings represents a covalent bond?

• A) A pair of atoms sharing electrons

• B) A pair of atoms transferring electrons

• C) A single atom with no bonds

• D) A group of atoms in a lattice structure

Tags

NGSS.MS-PS1-1

What is the correct Lewis structure for water (H2O)?

Tags

NGSS.MS-PS1-1

In a molecular drawing, what does a dashed line typically represent?

• A) A single bond

• B) A double bond

• C) A triple bond

• D) A bond going behind the plane of the paper