Simple Molecules

What type of particle is this?

• An ion

• A lattice

• A molecule

• A polymer

Tags

NGSS.MS-PS1-1

What type of bond is in a molecule of hydrogen chloride?

• Ionic

• Covalent

• Metallic

Give TWO reasons why hydrogen chloride is a gas at room temperature

• Hydrogen chloride has a low boiling point

• Hydrogen chloride has a high melting point

• Hydrogen chloride is made of simple molecules

• Hydrogen chloride does not conduct electricity

• Hydrogen chloride has a giant structure

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-4

This is propane. What type of bonding holds the atoms together?

• Ionic

• Covalent

• Metallic

Tags

NGSS.MS-PS1-1

This is propane. What does the symbol x represent?

• Proton

• Neutron

• Electron

Tags

NGSS.MS-PS1-1

Which diagram shows the arrangement of outer shell electrons in a molecule of ammonia?

• A

• B

• C

• D

Tags

NGSS.MS-PS1-1

Low melting and boiling points which increase with increasing molecule size due to increased intermolecular forces.

• simple covalent molecules

• metallic

• ionic

• giant covalent 

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-4

Formulae of these might include H₂O
each molecule contains 1 O and 2H atoms 

• simple covalent molecules

• metallic

• ionic

• giant covalent 

Tags

NGSS.MS-PS1-1

Covalent compounds

• Share electrons

• transfer electrons

• contain a sea of electrons

• conduct electricity

Tags

NGSS.MS-PS1-1

Which of these is covalent?

• NaCl

• Pb(NO₃)₂

• CO₂

• AlCl₃

Tags

NGSS.MS-PS1-1