2H2 + O2à2H2O

How many water molecules are created when 32 grams of oxygen react completely with 4 grams of hydrogen?

A. 2

B. 20

C. 6.02 * 1023

D. 1.2 * 1024

About how long is 1 meter? A. just over 3 inches B. just over 3 feet C. just over 3 yards D. just over 3 miles

If the ph of a 1.00-in. rainfall over 1600 miles2 is 3.60, how many kilograms of sulfuric acid, h2so4, are present, assuming that it is the only acid contributing to the ph? for sulfuric acid, ka1 is very large and ka2 is 0.012.

Under which conditions does the molar volume of a gas decrease

studying a molecule and trying to determine if it is DNA or RNA. Which kind of molecule is she studying?

How do elements such as carbon and nitrogen get moved through the living world?

Q5.6. if calcium ions, each of which has a charge of + 2 (ca2+), moved out of a neuron, and no other ions were moving, what would be true?

Calculate the moles of new H₂ O₂ using the balanced formula below and the average moles of KMnO₄ from calculation #2. The average moles of KMnO₄ is 0.90mol. 2KMnO₄ + 5H₂O₂ + 3H₂SO₄ → K₂SO₄ + 2MnSO₄ + 8H₂O + 5O₂ Edit: I got 2.

What is the intermolecular Force that causes water molecules to be attracted to each other? Ionic Bond Polar covalent bond Nonpolar covalent bond Hydrogen Bond What is the molecular geometry of a water molecule?

Justin Bleeber is a lazy young man and decides to burn a pile of leaves instead of bagging it. The pile of leaves weighed three pounds before being burned. After the leaves are burned the leftover ash weighs half a pound.

A diatomic gas has the molar mass 38.00 g/mol. What is a possible formula