Answer:
4.06 mol H₂O
Explanation:
- 2C₆H₁₄ + 19O₂ → 12CO₂ + 14H₂O
First we <em>convert the given masses of reactants into moles</em>, using <em>their respective molar masses</em>:
- 250 g O₂ ÷ 32 g/mol = 7.81 mol O₂
- 50 g C₆H₁₄ ÷ 86 g/mol = 0.58 mol C₆H₁₄
Now we <u>calculate how many O₂ moles would react completely with 0.58 C₆H₁₄ moles</u>, using the <em>stoichiometric coefficients of the reaction</em>:
- 0.58 mol C₆H₁₄ *
= 5.51 mol O₂
As there are more O₂ moles than required (7.81 vs 5.51), O₂ is the reactant in excess. That means that <em>C₆H₁₄ is the limiting reactant</em>.
Now we can <u>calculate how much water can be formed</u>, using <em>the number of moles of the limiting reactant</em>:
- 0.58 mol C₆H₁₄ *
= 4.06 mol H₂O
The rock has a mineral composition between granitic and basaltic rock. The rocks that contain a lot of silica but less iron and magnesium is granitic. However, Basaltic rocks have loads of iron and magnesium but very little silica. So therefore, your answer is an Andesic rock. Hope this helped!
Answer:
H. The ermine's dark brown coat in the summer changes to white is the winter.
Explanation:
If the ermine want to survive and not get attacked by predators, then they need to change the color of the coat from brown to white
Answer:
The sigma bonds are capable of rotating, the pi bonds not.
Explanation:
Sigma bonds are the strongest type of bonds, there are related to the overlapping in the atomic orbitals, and they can rotate. In the pi bound (that is a double bond), there are electrons moving on the molecule and it is not permitted the rotation on this type of bonds. Of the sigma bonds are capable of rotating while the pi bonds not.
360 miles ; 60 mph steady, meaning 60 miles in one hour, so in 6 hours he will travel 60•6= the miles he traveled total, which equals 360
