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lara31 [8.8K]
3 years ago
14

Scientists carried out an experiment with flowers from plant X and found out that within three minutes of exposure to the sound

of bees, the flowers increased the amount of sugar in their nectar by twenty times.
Explain how the above behaviour of the flowers can benefit plant X​
Chemistry
1 answer:
Alexxandr [17]3 years ago
8 0

Bees want the nectar from the flowers mostly for the sugar content. Also, the plant needs the bees in order to reproduce. Therefore, making its flowers more appealing to the bees is beneficial for its probability of reproduction.

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A pharmacist has a 12% solution of boric acid and a 20% solution of boric acid. How much of each must he use to make 80 grams of
Iteru [2.4K]

Answer:

  • <u><em>He must use 50g of the 12% solution and 30 g of the 20% solution.</em></u>

<u><em></em></u>

Explanation:

Call x the amount of <em>12% boric acid </em>solution to be used.

  • The content of acid of that is: 0.12x

Since he wants to make <em>80 grams</em> of solution, the amount of <em>20% boric acid</em> solution to be used is 80 - x.

  • The content of acid of that is{ 0.20(80 - x).

The final solution is <em>15% </em>concentrated.

  • The content of boric acid of that is 0.15 × 80 g.

Now you have can write your equation:

         0.12x+0.20(80-x)=0.15\times 80

Solve:

           0.12x + 16 - 0.20x=12\\\\-0.08x=12-16\\\\0.08x=4\\\\x=4/0.08\\\\x=50

That is 50 grams of the 12% solution of boric acid.

Calculate the amount of the 20% solution of boric acid:

         80-x=80-50=30

That is 30 grams.

Then, he must use 50g of the 12% solution and 30 g of the 20% solution.

5 0
3 years ago
a hot air balloon has a volume of 875L. what is the original temperature of the balloon if its volume changes to 955 L when heat
soldi70 [24.7K]

Answer:

using Charles law

v1/t1= v2/ t2

Explanation:

875/t1=955/56+273

t1= 329* 875/955

t1= 302.82k

4 0
2 years ago
How does ph affect photosynthesis?
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Which of the elements are nonmetals?
Elis [28]
The answer is E and F.

Hope this helps!!
8 0
2 years ago
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Infer if the mineral Talc would be a good choice when building a statue outside?
ruslelena [56]
Talc is not a good choice when building a statue because the mineral Talc is one of the weakest minerals on the Mohs Scale with a hardness of 1 since it could be scratched by a fingernail, which means that when people build a statue with Talc, it could be easily broken down.
5 0
3 years ago
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