Chemistry - Fall Semester Review 2020

What is the correct Lewis Dot Structure for ammonia NH3

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Tags

NGSS.MS-PS1-1

Which is the correct molecular structure for carbon dioxide?

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Tags

NGSS.MS-PS1-1

Which of the following elements are an exception to the octet rule and require less than 8 valence electrons?

• H

• Li

• C

Compounds composed of a ______________ and _____________ like the compound CaCl₂ , are ionic compounds.

• metal ... metal

• nonmetal ... nonmetal

• metal ... nonmetal

Tags

NGSS.HS-PS1-2

Which of the following describes covalent bonds?

• Bonds form because of opposite charges

• electrons are shared to fill outer electron shells

• Electrons are transferred between atoms

• Covalent bonds are magical

Tags

NGSS.HS-PS1-2

Ionic Bonding involves...

• The transfer of protons
• The transfer of nuetrons 
• The transfer of electrons
• None Of the above

Tags

NGSS.HS-PS1-2

Why do atoms form bonds?

• to attain a noble gas configuration - STABILITY!

• to increase their mass

• to increase their atomic number

• to attain an alkali metal configuration

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What property is describing an ionic compound?

• shares electrons

• high melting point

• weak bonds

• made up of nonmetals.

Tags

NGSS.HS-PS1-3

Which of the following gives the correct chemical formula for the compound Magnesium Phosphide?

• Mg₂P₃
• MgP
• Mg₃P₂
• MgP₂

Which of the following gives the correct chemical formula for the compound Dinitrogen Monoxide?

• NO
• N₂O
• N₂O₂
• O₂N₂

Tags

NGSS.MS-PS1-1