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Nitella [24]
3 years ago
9

Which of the following characteristics must be present for a substance to be called a mineral?

Chemistry
2 answers:
atroni [7]3 years ago
7 0
Answer is A have a crystal structure. 
Elis [28]3 years ago
7 0

Answer:

A. have a crystal structure

Explanation:

A mineral has a definite chemical structure

It has to be a solid

A mineral is inorganic

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Mercury is a chemical element with symbol Hg and atomic number 80. Classified as a transition metal, Mercury is a liquid at room temperature.

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Na+ the answer is A

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Using the Polymers: A Property Database provide the following
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Polyethene is a polymer composed of repeating units of the monomer ethene.

The properties of polyethene are as follows:

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<h3>What are polymers?</h3>

Polymers are large macromolecules consisting of long repeating chains of smaller molecules known as monomers.

An example of a polymer is polyethene composed of repeating units of the monomer ethene.

The density of polyethylene ranges 0.857 g/cm3 to 0.975 g/cm3.

The specific heat capacity of polyethene is 1.9 kJ/kg.

The melting temperature of polyethene is approximately 110 °C.

Learn more about polyethene at: brainly.com/question/165779

4 0
1 year ago
If the total population of Asian women was 5000in the 2008 how many females suffered a stroke?
Finger [1]

Answer:

Hi there!

I believe you are missing an attachment to this question however

I strongly believe that the answer you are looking for is 85.

Explanation:

If you provide the graph, the rate of strokes in Asian women will be 17 per 1,000 women so all you have to do is multiply 17 by 5 and you get 85

4 0
3 years ago
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