AP Chemistry

What happens in a covalent bond?

• Atoms gain or lose electrons and bond through charge.

• Atoms share valence electrons.

• Atoms connect through similar affinities (e.g. both hydrophobic)

Tags

NGSS.HS-LS1-6

Carbon and other nonmetals are found in which area of the periodic table?

• in the bottom rows

• on the left-most side

• on the right side

• in the middle columns

Tags

NGSS.HS-PS1-1

The order of the elements in the periodic table is based on what?

• atomic mass

• the number of protons in the nucleus

• the electric charge of the nucleus

• the number of neutrons in the nucleus

Tags

NGSS.HS-PS1-1

What subatomic particle has most likely been changed in an ion?

• The number of electrons

• The number of protons

• The number of neutrons

How many elements are in C₆H₁₂O₆?

• 1

• 3

• 24

• 48

Tags

NGSS.HS-LS1-6

How many Hydrogen atoms are in Water?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

What term is used for the joining of atoms to form new substances?

• valence electrons

• physical bonding

• energy level

• chemical bonding

Tags

NGSS.MS-PS1-5

How many neutrons does this isotope have?     ⁸⁹ ₃₆Kr

• 53

• 36

• 89

• 125

Will the following combination of solutions result in the formation of a precipitate?

• Yes: KNO₃

• Yes: BaSO₄

• No

Will the following combination of solutions result in the formation of a precipitate?

• Yes: NaNO₃

• Yes: AgCl

• No