What is the charge associated with each side of the HBr molecule?
1 answer:
Answer:
Partial positive on hydrogen and partial negative charge on oxygen atom
Explanation:
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B) land cools off much faster than water (creating a air region of high density above land and lower density above sea)
Answer:
O₂ (g).
Explanation:
- All elements that found in nature has heat of formation (Hf) equal 0 J/mol.
- So, the substance that has heat of formation (Hf) equal 0 J/mol is O₂ (g).
- H₂O is formed from the reaction of hydrogen and oxygen and has Hf, Also, the solidification of H₂O (s) from H₂O (l) has (Hf).
- Although, Ne (g) is found in nature and has no Hf, the liquification to form Ne (l) has heat of formation (Hf).
- CO₂ (g) is formed from the reaction between carbon and oxygen and so has heat of formation (Hf).
Answer:
The chemist needs to react 40 g of sulfur with 60 g of oxygen to make 100 g of sulfur trioxide.
Explanation:
2S (s) + 3O₂ (g) → 2SO₃ (g)
64g + 96g → 160 g
32g + 48g → 80 g
x + y → 100 g
1 mol SO₃ ___ 80g
n _______ 100g
n = 1.25 mol SO₃
1 mol S ___ 32 g
1,25 mol S __ 40 g
1 mol O₂ ___ 32 g
1,875 mol O₂ ___ 60 g
Answer:
Molecule.
Explanation:
carbon and fluorine. Based on the bonding, a unit of carbon dioxideis described as a molecule.
Answer:
it takes 100 gallons longer to boil then it does 1 gallon
Explanation:
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