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Gelneren [198K]
3 years ago
10

Pls solve this science thing free brainlest :)

Chemistry
1 answer:
OverLord2011 [107]3 years ago
4 0
I believe it is testing your hypothesis and collecting data.
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If you grew a plant with labeled atoms of carbon, nitrogen, hydrogen, and oxygen, which of these sources would dominate the mass
Alborosie
Labeled carbon and oxygen, coming from carbon dioxide as source

Plants are autotrophs, which means that they capable of producing their own "food" from inorganic substances using energy from light or chemical reactions. Plants produce their food mainly by photosynthesis, which utilizes energy in the form of sunlight to convert carbon dioxide in the atmosphere to complex organic molecules as source of food. 


4 0
4 years ago
How many moles are in 20g of potassium (K)?
otez555 [7]

Explanation:

Hi for this one u just need to remember and use the equation.

moles =  \frac{mass}{mr}

then u find mr of potassium which is 39.1.

then u do

\frac{20}{39.1}

you get the answer as 0.5115 write ur answer to 3 significant figures which will be 0.512 moles .

hope this helps :)

7 0
3 years ago
What is the name of the sugar acid produced when d-ribose is oxidized?
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The sugar acid produce when D ribose is oxidized is called D RIBITOL. 
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How does agitated water help divers?
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Adds a Cushion of fact to assist divers in training
5 0
3 years ago
I need help on this one to I don't know it
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