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Aleksandr-060686 [28]
2 years ago
7

All of the following cannot perform cellular respiration

Chemistry
1 answer:
Cerrena [4.2K]2 years ago
6 0
D. Rock because it is not living
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State which statement is a physical change or a chemical change:
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Physical change: A,C ,D, F, H, I

Chemical Change: B, E, G, J, K

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A 250ml glass of orange juice contains 22 grams of sugar. how much sugar is in a 2 liter (2.500ml) bottle of orange juice?
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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

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3 years ago
What describes Rutherford’s model of the atom?
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