Chemistry Exam Review #2

The first figure in a properly written chemical symbol is always...

• boldfaced
• capitalized
• underlined
• italicized

What is it called when matter changes from a gas directly to a solid?

• deposition
• condensation
• sublimation
• freezation

Tags

NGSS.MS-PS1-4

How many significant figures are in the measurement 0.0034 kg?

• two
• four
• five
• three

Three electrons are available to fill three 2p orbitals.  How will these electrons be distributed?

• Three electrons fill three 2p orbitals.
• Three in one orbital, none in the others.
• Two electrons in one orbital, one in another, none in the third.
• One electron in each orbital.

If an element is a poor conductor of electricity, in which category does it belong?

• metals
• nonmetals
• metalloids
• transition elements

Density is found by....

• dividing volume by mass
• multiplying mass and volume
• dividing mass by volume
• multiplying mass by moles

The smallest particle of an element that retains that element's properties is...

• atom
• electron
• compound
• molecule

In which of the following are correct?

• Cs: 55 protons, 133 electrons
• Zn: 30 protons, 60 electrons
• In: 49 protons, 49 electrons
• F: 26 protons, 26 electrons

Tags

NGSS.HS-PS1-1

How many electrons does magnesium have to give up to obtain a noble gas electron configuration?

• 1
• 2
• 3
• 12

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the formula for aluminum oxide?

• AlO
• Al₃O₆
• Al₂O₃
• Al₃O₂