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skelet666 [1.2K]
3 years ago
6

pesticides and fertilizers can help farmers to produce more crops. However, overuse of these chemicals can result in?

Chemistry
1 answer:
nadezda [96]3 years ago
8 0
Overuse of the same chemicals can result in the pest becoming immune to the pesticides. 
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A parachute on a racing dragster opens and changes the speed of the car from 85 m/s to 45 m/s in a period of 4.5 seconds. What i
LiRa [457]

Answer:

- 8.89 m/s^{2}

Explanation:

\frac{(Vf-Vo)}{time} =  \frac{(45-85 m/s)}{4.5s} = - 8.89 m/s^{2}

7 0
3 years ago
Read 2 more answers
Please help
ludmilkaskok [199]

Answer: The molecular formula will be C_3H_9

Explanation:

Molecular formula is the chemical formula which depicts the actual number of atoms of each element present in the compound.  

Empirical formula is the simplest chemical formula which depicts the whole number of atoms of each element present in the compound.  

The empirical formula is CH_3

The empirical weight of CH_3 = 1(12)+3(1)= 15g.

The molecular weight = 45.0 g/mole

Now we have to calculate the molecular formula:

n=\frac{\text{Molecular weight }}{\text{Equivalent weight}}=\frac{45}{15}=3

The molecular formula will be=3\times CH_3=C_3H_9

Thus molecular formula will be C_3H_9

6 0
3 years ago
What does the scientific method process allow for?
inn [45]

It allows to test a inference, and analyze data to determine if the inference of the observation was correct.

5 0
3 years ago
What is one thing chemical properties and physical proprieties of matter have in common
klemol [59]
They both break down and and erode
8 0
4 years ago
Draw the product formed when the compound shown below undergoes a reaction with hbr in ch2cl2. interactive 3d display mode
zysi [14]

Answer : The complete question is attached in the answer.


Explanation : In the given question an alkene is treated with alkylhalide in presence of methylene dichloride it gives a corresponding alkylbromide species.


The mechanism follows markonikov's addition rule, and the major product thus formed is bromine which is attached to least substituted carbon atom ad minor is bromine attached to highly substituted carbon atom.


4 0
3 years ago
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