20 grams of H₂S react with 20 grams of O₂. What is the limiting reagent? *
2 points
Captionless Image
H₂S
O₂
SO₂
H₂O
6 moles of O₂ react. Assume you have more than enough H₂S to react with it. How many moles of SO₂ are produced? *
1 point
Captionless Image
1 mole
2 moles
4 moles
6 moles
Cannot be determined
What do chemists used balanced chemical equations for? *
2 points
What is stoichiometry? *
2 points
What coefficients would be needed to balance the following chemical equation? Put them in order separated by commas. If no coefficient is needed, put a 1. example: 1,2,3,4 *
2 points
Captionless Image
1, 2, 3, 3
2, 1, 1, 2
1, 3, 2, 3
1, 3, 2, 2
I am doing an experiment that calls for 200g of H₂SO₄. How many moles of H₂SO₄ is this? Show your work. *
2 points
19,614 moles
2.02 moles
6.02x10²³ moles
7 moles
I have 4 moles of CO₂. How many molecules of CO₂ is this? *
2 points
12 molecules CO₂
6.02x10²³ molecules CO₂
2.41x10²⁴ molecules CO₂
1.20x10²⁴ molecules CO₂
Based on my scale, I have 35g of aluminum. How many aluminum atoms is this? SHOW YOUR WORK. *
4 points
Your answer
