Vocabulary
This unit is used to count extremely large numbers of atoms or molecules.
What is the mole?
Total number of atoms in H₂O.
What is 3 atoms?
The value of Avogadro’s number.
What is 6.022 × 10²³?
H₂ + O₂ → H₂O
What is NOT balanced — oxygen atoms do not match (2 on left, 1 on right)?
Which country did Dr. Jacob come from?
What is China?
This number shows how many molecules or formula units are involved in a reaction.
What is a coefficient?
Number of oxygen atoms in 2CO₂.
What is 4?
How many atoms are in 1.00 mol Ne?
What is 6.022 × 10²³ atoms?
4Al + 3O₂ → 2Al₂O₃
What is balanced — aluminum and oxygen atoms are equal on both sides?
This is the U.S. state where Dr. Jacob earned his PhD degree.
What is Tennessee?
This part of a chemical formula applies only to the element written immediately before it.
What is a subscript?
Total atoms in Ca(OH)₂.
What is 5 atoms?
If you have 2.00 moles of CO₂ molecules, you have this many molecules.
What is 1.2044 × 10²⁴ molecules?
CH₄ + O₂ → CO₂ + 2H₂O
What is NOT balanced — oxygen atoms do not match?
Dr. Jacob has not returned to his home country for this amount of time — said in words, not numbers.
What is nine and a half years?
This number is called Avogadro’s number.
What is 6.02 × 10²³?
The number of Sulfur atoms in Al₂(SO₄)₃
What is 3 atoms?
Convert 3.01 × 10²³ atoms of He into moles.
What is 0.500 mol?
CH₄ + 2O₂ → CO₂ + 2H₂O
What is balanced — carbon, hydrogen, and oxygen atoms all match?
This English soccer club is Dr. Jacob’s favorite team.
What is Arsenal FC?
This phrase describes the mass of one mole of a substance.
What is molar mass?
Which contains more atoms, 2 moles of O₂ or 3 moles of O?
What is 2 moles of O₂?
Which has more particles: 1 mol NaCl or 1 mol H₂O? (Explain with one phrase.)
What is neither—same number of particles (Avogadro’s number)?
Ca(OH)₂ + HCl → CaCl₂ + H₂O
What is NOT balanced — hydrogen and chlorine atoms do not match?
Dr. Jacob is a proud pet owner — but not of a dog. This animal rules his home.
What is a cat?