Quiz Chemistry

What is an element?

• An element is an atom and two atoms
• An element is one or more atoms of the same kind.
• An element is more than one of different kinds

Tags

NGSS.MS-PS1-1

What is a compound?

• One single atom
• Many atoms of the same element
• A molecule made of more than one element
• Everything is made of matter 

Tags

NGSS.MS-PS1-1

What is the chemical formula for this molecule?

• C₆H₆O₆
• C6H606
• C₆H₁₂O₆
• ₆C₁₂H₆O

Tags

NGSS.MS-PS1-1

How many atoms of Nitrogen are in this molecule?

• 3
• 2
• 0
• 1

Tags

NGSS.MS-PS1-1

Is this a compound or an element?

• Element
• Compound 

Tags

NGSS.MS-PS1-1

Which is NOT kinetic energy?

• Mechanical 
• Thermal / Heat
• Light / Radiant 
• Gravitational 

The smallest particle that all matter is made from is ....

• Matter
• Elastic Energy
• a Atom
• some Helium 

Tags

NGSS.MS-PS1-1

Central core of an atom

• Nucleus

• Neutron

• Proton

• Electron

What are valence electrons?

• Total number of electrons in an atom

• Total number of electrons in the outermost shell or orbit

• Number of electrons in the second shell/orbit

• Number of protons in the outermost shell/orbit

MgCl₂ --> Mg₄+ Cl_{2. Balance the equation}

• It is balanced

• 4MgCl₂ --> Mg₄+ 4Cl₂

• 4MgCl₂ --> Mg₄+ 5Cl₂

• Can't say