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kozerog [31]
2 years ago
10

Which would be a biotic factor in an ecosystem? 1)air 2)rain 3)algae

Chemistry
2 answers:
laila [671]2 years ago
7 0
Air and rain are very important
Mars2501 [29]2 years ago
5 0

Answer:

3

Explanation:

because biotic are things you can touch

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If 3.50 moles of sodium chloride is added to your food, how many grams is added?
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Answer:

204.8g

Explanation:

The number of moles of a substance is related to its mass and molecular mass as follows:

mole (n) = mass (m) ÷ molar mass (MM)

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Molar mass of NaCl = 23 + 35.5

= 58.5g/mol

Using mole = mass/molar mass

Mass = molar mass × mole

Mass = 58.5g/mol × 3.5mol

Mass = 204.75

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3 years ago
Convert the following to Kelvin<br> 12) 0° C<br> 13) -50° C<br> 14) 90° C<br> 15) -20° C
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Answer:

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13)223.15 kelvin

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Explanation:

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