What is the difference between a rock and a mineral ? Plz only (1-2 sentence) thx sm!

1 answer:

4 0

A mineral is a naturally occurring inorganic element or compound having an orderly internal structure and characteristic chemical composition, crystal form, and physical properties. ... A rock is an aggregate of one or more minerals, or a body of undifferentiated mineral matter.

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in this trial, 0.400 M NaOH was added to 40.00 ml of 0.400 M HCl. How many ml of base must be added to cause the colour to chang

denis-greek [22]

Answer:

The amount of Ml that is needed

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2 years ago

What causes polar bonds

yulyashka [42]

Answer:

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Explanation:

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2 years ago

On July 4, 2020, America turned 7.69 x 10^9

iogann1982 [59]

America's age = 243.85 years

<h3>Further explanation</h3>

When converting units, list and multiply all the units until you find the unit you want

Time unit conversion

1 year = 365 days

1 day = 24 hours

1 hour = 3600 s

7.69 x 10⁹ seconds to years :

$\tt =7.69\times 10^9~s\times \dfrac{1`hour}{3600~s}\times \dfrac{1~day}{24~hours}\times \dfrac{1~years}{365~days}\\\\=\dfrac{7.69\times 10^9}{3600\times 24\times 365}\\\\=\boxed{\bold{243.85~years}}$