Chemistry Midterm Review 2023-24

Water is an example of a(n) ____ compound.

• nonpolar covalent

• polar covalent

• ionic

• metallic

Students were asked to separate a mixture and take the mass of the isolated compounds. Included is the data for one of the compounds. The actual mass of this compound is 1.048g. How could this data be described?

• precise, but not accurate

• accurate, but not precise

• both accurate and precise

• neither accurate or precise

How many different elements are included in the compound NaOH?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

Which of these elements would NOT be reactive at all? (Hint: Look at Periodic Table)

• Neon, Ne

• Cesium, Cs

• Boron, B

• Gold, Au

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which set of elements would you expect to make the same number of bonds?

• arsenic (As) and gold (Au)

• fluorine (F) and chlorine (Cl)

• nitrogen (N) and oxygen (O)

• hydrogen (H) and helium (He)

Tags

NGSS.HS-PS1-1

Atomic number tells you the number of ____ for an atom. (choose all that apply)

• protons

• electrons

• neutrons

Which of the following is a nonmetal?

• potassium (K)

• copper (Cu)

• oxygen (O)

• lithium (Li)

Which atom has 2 electron shells and 7 seven valence electrons?

• fluorine (F)

• beryllium (Be)

• francium (Fr)

• iron (Fe)

Tags

NGSS.HS-PS1-1

Which of the following has a charge?

• electron

• nucleus

• neutron

• atom

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

What element has this electron configuration: [Ar]3d¹⁰ 4s² 4p¹?

• aluminum (Al)

• indium (In)

• calcium (Ca)

• gallium (Ga)

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2