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ryzh [129]
3 years ago
12

Help me answer this question for points!

Chemistry
1 answer:
labwork [276]3 years ago
6 0

Answer:

I am pretty sure Danny Duncan told me 69

Explanation:

niice

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Explanation:

Two acids we come into contact with in an average week

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Two bases we come into contact with in an average week.  

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How much heat do you need to raise the temperature of 150 g of ice from -30°C to -15°c?
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To solve this question, you must use the formula: q=mc(change in temperature), where q is heat, m is mass, C is specific heat and temperature change is temperature change. The specific heat for ice is 2.1kJ/Kg x K (given). The change in temperature is 15 degrees Celsius (which you should change to kelvins so you can cancel out units), or 273 + 15 = 288K. The mass is 150 grams, which is 0.15 kg. Now, we can solve for q, heat. We will do this by substituting variables into the formula. After simplifying and cancelling out units, the answer we get is: 90.72kJ.
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You need to first write a chemical equation and balance it
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2 C₄H₁₀ + 13 O₂ → 8 CO₂ + 10 H₂O
1.0 moles               X moles
1.0 mol C₄H₁₀ (\frac{8 mol CO₂}{2 mol C₄H₁₀}) = 4 moles of CO₂
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