<span>Glass cylinders are preferred over plastic cylinders for conducting lab experiments because glass is both heat and chemical resistant. </span>
Answer:
2:1
1.2 × 10² g
Explanation:
Step 1: Write the balanced combustion equation
CH₄ + 2 O₂ ⇒ CO₂ + 2 H₂O
Step 2: Establish the appropriate molar ratio
According to the balanced equation, the molar ratio of O₂ to CH₄ is 2:1.
Step 3: Calculate the moles of CH₄ required to react with 15 moles of O₂
We will use the previously established molar ratio.
15 mol O₂ 1 mol CH₄/2 mol O₂ = 7.5 mol CH₄
Step 4: Calculate the mass corresponding to 7.5 moles of CH₄
The molar mass of CH₄ is 16.04 g/mol.
7.5 mol × 16.04 g/mol = 1.2 × 10² g
Answer:
D. 2666.67g/dm3
Explanation:
Hello,
In this case, we compute the solubility as:
Thus, we compute:
Therefore, answer is D. 2666.67g/dm3.
Best regards.
Answer:
Dimitri mendleev and Albert something. I forgot his last name. I think ghorso. Albert ghorso.