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UNO [17]
3 years ago
11

Which of the following is not a vector?

Chemistry
2 answers:
saul85 [17]3 years ago
5 0
<span>Acceleration , displacement, power, weight</span>
Setler79 [48]3 years ago
4 0
Do we get multiple choice
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How many joules of heat are required to heat 125 g aluminum from 19.0°C to 95.5°C?
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125*0.902*(95.5-19)= 8630 J
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What is the only planet in our solar system that rotates in a different direction from the other planets??​
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3 years ago
What is the percent composition of carbon in heptane c7h16
Gnom [1K]

Answer: the percent composition of carbon in heptane is 83.9%

Explanation:

<u>1) Atomic masses of the atoms:</u>

  • C: 12.01 g/mol
  • H: 1.008 g/mol

<u>2) Molar mass of heptane:</u>

  • C₇H₁₆: 7 × 12.01 g/mol + 16×1.008 g/mol = 100.2 g/mol

<u>3) Mass of carbon in one mole of heptane:</u>

  • C₇: 7 × 12.01 g/mol = 84.07 g/mol

<u>3) Percent composition of carbon:</u>

  • % = (mass in grams of C) / (mass in grams of C₇H₁₆) × 100 =

           = (84.07 g/ 100.2 g) × 100 = 83.9% ← answer

8 0
3 years ago
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