by BlastRoom
Practice assigning oxidation numbers in compounds and polyatomic ions.
#chemistry

24 questions
One question set, multiple game modes. Tap any game to see it in action. Not sure which to pick?
Answer to place stones and capture territory.
Outrun the snow together.
Earn blasts, then hunt the other team.
Answer to earn energy, then climb.

The class blasts through walls together.
Bid on mystery lots. Most money wins.
Sell tours. Nice, standard, or a total scam.
Answer, restock, and serve the rush.
More correct answers pulls the rope your way.
Answer, then shoot down the alien wave.
Answer, then tap to leap the frozen ridge.
What is the oxidation number of sulfur in H2SO4?
In KMnO4, what oxidation number is assigned to manganese?
Apply the oxidation-number rules to HClO3. What is chlorine's oxidation number?
Which oxidation number belongs to nitrogen in NH3?
For CO2, assign the oxidation number of carbon.
In Fe2O3, what is the oxidation number of each iron atom?
Chromium forms CrO3. What oxidation number does chromium have in this neutral compound?
In PCl3, chlorine is assigned -1. What is phosphorus's oxidation number?
Hydrogen peroxide has the formula H2O2. What is the oxidation number of oxygen in this compound?
In OF2, fluorine keeps its usual oxidation number of -1. What is oxygen's oxidation number?
What is the oxidation number of sulfur in SO42-?
The dichromate ion is Cr2O72-. What is the oxidation number of each chromium atom?
In NO2-, what oxidation number must nitrogen have?
Choose chlorine's oxidation number in ClO4-.
Carbonate is CO32-. What oxidation number is assigned to carbon?
For PO43-, determine the oxidation number of phosphorus.
In MnO4-, what is the oxidation number of manganese?
Ammonium is NH4+. What oxidation number does nitrogen have in this ion?
Which set gives the oxidation numbers in NaNO3?
Select the complete oxidation-number set for H2SO3.
Which ordered list is correct for K2Cr2O7?
Which set assigns oxidation numbers correctly in NaH, sodium hydride?
For ClO3-, which complete set of oxidation numbers is correct?
Which set gives the oxidation numbers in Fe2(SO4)3?
Crack the passcode before the zombies get in.
Answer, then swat bugs for bonus points.
Race through questions at your own speed.
Same question on every screen. Fastest wins.

Pick a tile, answer, hit bonuses and steals.
Functional Groups and Organic Reactions
20 questions