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lisabon 2012 [21]
3 years ago
7

Identify examples of the list below. Check all that apply

Chemistry
2 answers:
iogann1982 [59]3 years ago
8 0

Answer:

Where are the examples

alukav5142 [94]3 years ago
6 0
Where are the examples
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A right? I'm pretty sure it's A

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What determines the length of each period in the periodic table?
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The number of electrons that can occupy the sub levels being filled by that period
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How does the periodic table used today classify elements?
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The Periodic Table organizes chemical elements according to the number of protons that each has in its atomic nucleus

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3. The doctor notices that Janet has long fingernails, and comments that fingernails grow at a rate (or
Viktor [21]

Answer:

7.93 × 10⁻¹³ km/s

Explanation:

Step 1: Given data

Rate of growth of the fingernails (r): 2.50 cm/year

Step 2: Convert "r" from cm/year to km/year

We will use the following conversion factors.

  • 1 m = 100 cm
  • 1 km = 1000 m

\frac{2.50cm}{year} \times \frac{1m}{100cm} \times \frac{1km}{1000m} = 2.50 \times 10^{-5} km/year

Step 3: Convert "r" from km/year to km/s

We will use the following conversion factors.

  • 1 year = 365 day
  • 1 day = 24 h
  • 1 h = 60 min
  • 1 min = 60 s

\frac{2.50 \times 10^{-5} km}{year} \times \frac{1year}{365day} \times \frac{1day}{24h} \times \frac{1h}{60min} \times \frac{1min}{60s} = 7.93 \times 10^{-13} km/s

2.50 cm/year is equal to 7.93 × 10⁻¹³ kilometers/second.

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