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anyanavicka [17]
3 years ago
8

In your own words, describe a pure substance. How can elements as well as compounds be considered pure substances.

Chemistry
1 answer:
Marizza181 [45]3 years ago
8 0

Answer:

Pure compounds include elements and compounds where a combination of two or more pure substances is a mixture. Only one type of atom comes in the form of a pure element. Multiple atoms consist of a molecule and different atoms consist of a compound. These are all pure substances and individually.

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If there was a chemical spill into the waterways near Dayton, would the communities along the Mill Creek need to worry? Explain.
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2 years ago
Write the chemical equation for the formation of HI from the single, isolated H and I atoms.
mart [117]

Answer:

H2 + I2 → 2 HI.

Explanation:

Hydrogen iodide is a diatomic gas which can be readily formed from the direct combination of the elements involved which is hydrogen and iodine. Both elements can be combined by irradiating the mixture with an electromagnetic radiation that has a wavelength which is equal to that needed to break the iodine molecule bond between the two iodine atoms

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How many atoms of chlorine are represented below? 9NaCL
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Explanation:

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What is the pH of a<br> 2.5 x 10-5 M solution<br> of HCI?
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Answer:

The pH of the solution is 4.60.

Explanation:

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pH = -log (H30 +)

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7 0
3 years ago
What are some milk products made from lactic acid fermentation?
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2.</span><span>Middle East: pickled vegetables.
3.</span><span>Korea: kimchi (fermented mixture of Chinese cabbage, radishes, red pepper, garlic and ginger)
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7.</span><span>South Africa : magou (fermented maize porridge)
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9.</span><span>Philippines : balao balao (fermented rice and shrimp mixture)
</span><span>Lactic acid fermentation also gives the sour taste to fermented vegetables such as traditionally cultured sauerkraut and pickles. The sugars in the cabbage are converted into lactic acid and serve as a preservative.</span>

8 0
3 years ago
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