Chemistry Final Review

How long will I have to put in a grade to the grade book?

• 1 week
• Must be instant
• The next day

A charged atom is called _____

• isotope
• atom
• ion
• nucleon

An atom with the same number of protons, but a different number of neutrons is called ____.

• isotope
• atom
• ion
• nucleon

What is the charge of an atom with 38 protons, 50 neutrons, and 36 electrons?

• +2
• -2
• -36
• -12

What is the mass number of the following? Silver-105

• 110
• 58
• 47
• 105

Group 9, Period 4

• Thorium
• Cobalt
• Fluorine and Beryllium
• Meitnerium

Tags

NGSS.HS-PS1-1

What is the difference in electronegativity for HBr

• 0.76
• -0.76
• 5.16
• -5.16

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the difference in electronegativity for NaCl?

• 4.09
• -2.23
• 2.23
• -4.09

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

_____ NH₄NO₃ --> _____ N₂ + _____ O₂ + _____ H₂O

• 2, 2, 1, 4
• 2, 1, 3, 2
• 4, 4, 2, 8
• 4, 2, 6, 4
• 1, 1, 1, 2

Tags

NGSS.HS-PS1-7

_____ C₂H₆O + _____ O₂ --> _____ CO₂ + _____ H₂O

• 1, 3, 2, 3
• 2, 6, 4, 6
• 3, 9, 6, 9
• 2, 1, 1, 1