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Mama L [17]
3 years ago
12

NEED HELPPP PLSSSSSSSSSS

Chemistry
1 answer:
Leto [7]3 years ago
4 0
I would pick the first option in the third option
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Answer this for 100 points.
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A I think

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Creating a prototype and troubleshooting o
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D. a new technology.
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Which internal system is responsible for transporting oxygen and nutrients through an animal's body?
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B: circulatory system

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The circulatory system is made up of blood vessels that carry blood away from and towards the heart. Arteries carry blood away from the heart and veins carry blood back to the heart. The circulatory system carries oxygen, nutrients, and hormones to cells, and removes waste products, like carbon dioxide.

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How can we make use of acids or bases to remove metals from soils?
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2 years ago
For the following example, list the given and unknown information (including gratis or moles)
Setler79 [48]

Answer:

9.6 moles O2

Explanation:

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The molar mass of water is 18.0 grams/mole.

Therefore:  (345g)/(18.0 g/mole) = 19.17 or 19.2 moles water (3 sig figs).

The balanced equation states that:  2H20 ⇒ 2H2 +02

It promises that we'll get 1 mole of oxygen for every 2 moles of H2O, a molar ratio of 1/2.

get (1 mole O2/2 moles H2O)*(19.2 moles H2O) or 9.6 moles O2

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2 years ago
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