Food Science Fundamentals of Chemistry Quiz

Convection heating occurs in:

• a liquid or a solid.

• a liquid or a gas.

• 
  a solid or a gas.

• 
  D. only in gas

Which of the following has the highest specific heats of any known substance?

• Water

• Oil

• 
  Fat

• 
  Orange Juice

Anything that takes up space and has mass is called:

• Acid.

• Base.

• 
  C. Matter.

• 
  D. Substance.

The smallest particles of an element that keep its chemical properties are called:

• Atoms.

• Chemicals.

• 
  Solutions.

• 
  D. Substances.

Which is not true of a solution?

• Consists of a homogeneous mixture

• Components cannot be identified by sight

• Individual substances are dissimilar and can be identified by sight

• May be any combination of solids, liquids, or gases dissolved in each other

Which is the chemical symbol for caffeine?

• NaCl
  

• NaHCO3

• C8H10N4O2

• C14H18N2O5

Of the four element symbols, which represents the element least likely used in food science?

• C

• Fe

• H

• Na

When substances change into other substances, the change is referred to as a/an:

• Chemical bond.

• Chemical reaction.

• Ionic compound.

• Physical change.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

A negatively charged particle that moves around the nucleus of an atom is a/an:

• Electron.

• Ion.

• Neutron.

• Proton.

Tags

NGSS.MS-PS1-1

Which describes the union formed when atoms share electrons with each other?

• Atomic mass

• Chemical solution

• Covalent bond

• Ionic bond