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kap26 [50]
3 years ago
11

You are given a sample of an unknown pure substance. To identify this substance, identify a property you could measure. Explain

why measuring this particular property would be useful.
My science work plz help Ill give 42 points
Biology
2 answers:
Eddi Din [679]3 years ago
6 0
One property you could measure is its solubility. Knowing whether or not it dissolves in water will help you narrow down the possible substances it could be.

Another is density. Using the volume and mass, you can calculate density. This will also narrow down the possible substances.
Klio2033 [76]3 years ago
4 0
To make sure it’s even
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Which nucleic acid is pictured on the right? Justify your answer.
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Answer:

Nucleic Acids:

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Since we only have one strand shown, I'm going to assume it is RNA. Both DNA and RNA have nucleic acids, but RNA has 1 different nucleic acid; it replaces Thymine with Uracil. So the 4 nucleic acids are uracil, adenine, guanine, and cytosine.

If the picture shown is a cross-section of DNA, then our 4 nucleic acids are adenine, thymine, guanine, and cytosine.

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2. Organize: Compare the colors of the following stars in the Star collection: Aldebaran,
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The colors for the stars are red, white, blue-white, white, and blue, and their temperature are 3,910 K, 3,500 K, 25,200 K, 22,400K, 5,780K, 9,600 K.

<h3>What is a star?</h3>

A star is a type of celestial body that can be set apart from others because it shines due to inner radiation. Moreover, stars are classified by:

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Now, let's identify the color and temperature of the stars:

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  • Sirius B: This star has a temperature of 25,200 K and its color is white.
  • Spica: This star has a temperature of 22,400K and it is a blue-white star.
  • The Sun: This star has a temperature of 5,780K and its color is white.
  • Vega:  This star has a temperature of 9,600 K and it is a blue star.

Learn more about stars in: brainly.com/question/2166533

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A star turns matter into energy in the process of
yarga [219]
A star is a fusion reactor. Under enormous pressure, resulting from gravity, light nuclei of gases such as hydrogen merge to form helium, and since this process releases energy, the start begins to radiate the excess energy. Later on, helium fusion produces heavier elements, and so on.
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