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Rus_ich [418]
3 years ago
7

Which of the following is NOT an example of a molecule A: H2O2 B:NCI3 C:F D:O3

Chemistry
2 answers:
timama [110]3 years ago
6 0

C. F because it's an atom not a molecule

romanna [79]3 years ago
6 0

Yes, the answer is C:F which has no atoms

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A student does not observe a change when holding a test tube in a flame. However, a change is expected. What is the most likely
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. a large piece of jewelry has a mass of 132.6 g. a graduated cylinder initially contains 48.6 ml water. when the jewelry is sub
elena-s [515]

The large piece of jewelry  that has a mass of 132.6 g and when is submerged in a graduated cylinder that initially contains 48.6 ml water and the volume increases to 61.2 ml once the piece of jewelry is submerged, has a density of: 10.523 g/ml

To solve this problem the formulas and the procedures that we have to use  are:

  • v = v(f)-v(i)
  • d = m/v

Where:

  • d= density
  • m= mass
  • v= volume
  • v(f) = final volume
  • v(i) = initial volume

Information about the problem:

  • m = 132.6 g
  • v(i) = 48.6 ml
  • v(f) = 61.2 ml
  • v = ?
  • d =?

Applying the volume formula we get:

v = v(f)-v(i)

v = 61.2 ml - 48.6 ml

v = 12.6 ml

Applying the density  formula we get:

d = m/v

d = 132.6 g/12.6 ml

d = 10.523 g/ml

<h3>What is density?</h3>

It is a physical quantity that expresses the ratio of the body mass to the volume it occupies.

Learn more about density in: brainly.com/question/1354972

#SPJ4

3 0
1 year ago
Calcium’s atomic number is 20. it forms ions with 18 electrons. what is the electrical charge of a calcium ion?
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On September 23 The earths axis is tilted which way?
Mariana [72]

Answer:

The earth is tilted so its perpendicular

Explanation:

Because its straight up and down

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3 years ago
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