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Katen [24]
3 years ago
10

A bag of fertilizer is labeled 10-20-20. What is the actual percentage of phosphorus in the fertilizer?

Chemistry
1 answer:
aleksandr82 [10.1K]3 years ago
8 0

Answer:

20% of phosphorus

Explanation:

A fertilizer is used to improve the fertility of soils. Most fertilizers contains the element nitrogen, phosphorus and potassium.

They are often designated NPK fertilizers.

  Now we know that the numbers 10-20-20 depicts the nitrogen-phosphorus and potassium content of the fertilizer.

From the designation,

    The actual percentage is 20% of phosphorus.

                                               10%  of nitrogen

                                                20% of potassium

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Answer:

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Explanation:

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6 0
2 years ago
1. How many joules must be added to 10.0 g of water to raise its temperature from 10°C to<br> 15°C?
weqwewe [10]

Answer:

209.3 Joules require to raise the temperature from 10 °C to 15 °C.

Explanation:

Specific heat capacity:

It is the amount of heat required to raise the temperature of one gram of substance by one degree.

Formula:

Q = m × c × ΔT

Given data:

mass of water = 10 g

initial temperature T1= 10 °C

final temperature T2=  15 °C

temperature change =ΔT= T2-T1 = 15°C - 10°C = 5 °C

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We know that specific heat of water is 4.186 J/g .°C

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Q = 10 g × 4.186 J/g .°C × 5 °C

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2 years ago
In order to predict the outcome of the reaction, write the molecular, full ionic, and net ionic equations for a mixture of aqueo
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Answer:

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Explanation:

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Net ionic equation;

2NH3(aq) + Ag^+(aq) -------->  [Ag(NH3)2]^+(aq)

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3 years ago
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Thus, the skateboarder wants the force to be increase that is acting on him.

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3 years ago
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