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Alekssandra [29.7K]
4 years ago
6

What is a substance?

Chemistry
1 answer:
shusha [124]4 years ago
7 0

I think the answer is C. An element or compound that cannot be physically separated. Sorry if im wrong.

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Rainforests are not generally considered a source of _______.
schepotkina [342]

Rainforests are not generally considered a source of none of the above choices. You can get food from Rainforests, and also spices and medicines. In fact, Rainforests have a variety of plants that have medicinal properties. When you know how to find the right plant in the rainforests, you can access almost everything.

<h2>Hence, your answer is D. None of the above</h2>

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Thanks!

Answered by: FieryAnswererGT

#learnwithbrainly

8 0
3 years ago
How many grams of H3PO4 are in 234 mL of a 2.5 M solution of H3PO4?
motikmotik

Answer:

57 grams of H3PO4

Explanation:

M= moles/ liters

convert mL to L

234 mL x 1L/1000mL = 0.234L

Rearrange the Molarity formula to solve for moles.

moles= MxL

moles= 2.5M x 0.234L

moles= 0.585 mol

Use the molar mass of H3PO4 to get to grams

0.585 mol x 97.994 grams/1 mol = 57.326 grams of H3PO4

round to two sig figs for 57 grams

5 0
3 years ago
Democritus believed that matter is made up of tiny individual particles known as
cluponka [151]
<span>Democritus believed that matter is made up of tiny individual particles known as </span>Atoms
7 0
3 years ago
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Is evaporation of water a physical change or a chemical change? explain your answer?
Olin [163]
Chemical because it would be impossible to get the evaporated water and turn it back into it's original substance.
8 0
3 years ago
1. You return to the car from an all-day shopping spree at the mall.
Arlecino [84]

Answer:

it could be a bad experience

Explanation:

because the left the cd on the dashboard

5 0
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