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Mnenie [13.5K]
3 years ago
6

Scientists are trying to find chemicals that will be helpful to agriculture but which will not ____ the environment

Chemistry
1 answer:
Valentin [98]3 years ago
3 0

I think it is A. Harm

Scientists are trying to find chemicals that will be helpful to agriculture but which will not HARM the environment

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3. What effect does dark energy have on the universe?
sladkih [1.3K]
Dark energy and dark matter seem over analyzed, although they are no different than gravity and wind. Dark energy can be the pulling caused by black holes, stars, and large planets. Dark matter also is just the effect of cosmic dust and debris pushed from explosions but also pulling caused by distant gravitational bodies.
4 0
4 years ago
Calculate the molar mass of adrenaline (C9H13NO3C9H13NO3), a hormone responsible for regulating heart rate and other functions o
Talja [164]

Answer:

M_{C_9H_{13}NO_3}=183.23g/mol

Explanation:

Hello!

In this case, since the molar mass of a chemical compound is computed by averaging the atomic mass of each element in the molecule and the amount of atoms; which in this case there are 9 carbon atoms, 13 hydrogen atoms, 1 nitrogen atom and 3 oxygen atoms; thus, we compute the average as shown below:

M_{C_9H_{13}NO_3}=m_C*9+m_H*13+m_N+m_O*3

Now, we plug in the atomic masses to obtain:

M_{C_9H_{13}NO_3}=12.01*9+1.01*13+14.01+16.00*3\\\\M_{C_9H_{13}NO_3}=183.23g/mol

Best regards!

6 0
4 years ago
Which of the following correctly summarizes the
Grace [21]

Answer:

A

Explanation:

The lithosphere represents the layer of hardened/solid rock that makes up the hard part of the earth, including the brittle upper portion of the mantle and the crust. The lithosphere is broken into pieces that are referred to as plates. The pieces move to and away from each other in a process known as plate tectonics. The movement of plates accounts for the global locations of volcanoes, earthquakes, and mountain ranges.

<em>The lithosphere is made of largely of inorganic materials known as silicates. The weathering of the solid rocks together with the interaction of living organisms gives rise to soil with an appreciable amount of organic materials.</em>

The correct option is, therefore A.

4 0
3 years ago
Which formula represents an organic compound?
coldgirl [10]

(2) C4H8 because it contains a carbon
3 0
3 years ago
Read 2 more answers
The equation for the complete combustion of ethane (C2H4) is
Mandarinka [93]
-6x -8y = 28
6х + 4y =-28

would this be infinite many solutions or no solutions?
5 0
3 years ago
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