<span>If deltaH is positive, that means the reaction took heat from its environment (endothermic reaction).
The molar mass of O2 is 32 g/mol.
Therefore, 42g of O2 is equal to 1.3 moles O2.
The equation assumes 3 moles of O2. That means, only 1.3/3 = 43% of the delta H in the equation was formed.
824.2 kJ x 43% = 354 kJ. The closest answer is 1) the absorption of 361 kJ of heat.</span>
Answer:
The answer is
<h2>0.24 g/mL</h2>
Explanation:
The density of a substance can be found by using the formula
<h3>
</h3>
From the question
mass of cork = 2.88 g
volume = 12 mL
The density is
We have the final answer as
0.24 g/mL
Hope this helps you
Answer:
Explanation:
2C₄H₁₀ + 13O₂ ⟶ 8CO₂ + 10H₂O
n/mol: 4.3
13 mol of O₂ react with 2 mol of 2C₄H₁₀
another name of chemical change is Chemical reaction.