P.E.N.
How many neutrons are in oxygen ?
What is 8?
H₂ + O₂ → H₂O
What is Unbalanced ?
Ice Melting into Water
Is H2 a Molecule or Compound?
What is a Molecule?
Is Salt a Mixture or Compound?
What is Compound?
How many protons are in Neon?
4Fe + 3O₂ → 2Fe₂O₃
What is Balanced ?
A Marshmallow Burning
What is Chemical?
How Molecules are in 2H₂O ?
What is 2?
Is air a mixture or a compound?
What is a mixture ?
How many electrons are in silicon?
What is 14?
CH₄ + 2O₂ → CO₂ + 2H₂O
What is Balanced ?
What is Chemical ?
How many total atoms are in 4NH₃ ?
What is 16?
What is a compound?
How many protons are in silver ?
N₂ + H₂ → NH₃
What is Unbalanced ?
Mixing Sugar and Water ?
What is Physical Change?
How many Molecules are in 4CaCO₃ ?
What is four?
Can I separate a mixture by physical means?
What is Yes?
How many neutrons are in Selenium?
What is 45?
CO₂ + H₂O → C₆H₁₂O₆ + O₂
What is unbalanced?
Baking a Cake
What is Chemical ?
How many atoms are in 6NaCl ?
What is 12?
Can I separate a compound by physical means?