EXAM: Food Chemistry

Which of the following pictures represents a HETEROgenous mixture?

• 
• 
• 
• 

dissolving sugar in iced tea is an example of a:

• Physical change
• Chemical Change

A(n) ________has different properties than the elements that form it.

• compound
• element
• Molecule
• Mole

________bond: the force that holds atoms together

• Chemical
• Science
• Polar
• double

Tags

NGSS.HS-PS1-7

In a _______ bond: two atoms share electrons.

• Ionic
• Covalent
• Hydrogen
• electronic

______ changes involve changing shape, physical state, size or temperature without changing the chemical identity.

• Physical
• Chemical
• Nuclear
• Ionic

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which of the following correctly defines one of the components of an atom?

• Neutron- Negative charge
• Proton- Neutral charge
• Electron- negative charge
• Electron- Neutral charge

_______ bonds form by the attraction between oppositely charged ions.

• Ionic
• Covalent
• Nuclear
• Chemical

Tags

NGSS.HS-PS2-4

In a saltwater mixture such as seawater, ions are __________.

• Atoms or molecules in which the number of electrons are not equal to the number of neutrons

• Are neutral

• Partisan

• Only monatomic

• Positively or negatively charged

Tags

NGSS.MS-PS1-2

A ___________has one type of atom or Molecule.

• Pure substance
• Mixture