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Kay [80]
3 years ago
6

What kinda of water movement helps the fishing industry

Chemistry
1 answer:
Eddi Din [679]3 years ago
5 0

Answer:

Upwelling is the natural process which brings cold, nutrient-rich water to the surface. A huge upwelling regularly occurs off the coast of Peru, which enjoys a large fishing industry as a result. Upwelling is a process in which currents bring deep, cold water to the surface of the ocean.

Explanation:

good luck

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A 28. 0 ml sample of vinegar, which is an aqueous solution of acetic acid, ch3cooh, requires 21. 5 ml of 0. 550 m naoh to reach
Fittoniya [83]

Concentration of vinegar sample of 28mL which requires 21. 5 ml of 0.550 M NaOH to reach the endpoint in a titration is 0.42M.

<h3>How do we calculate the concentration of Vinegar?</h3>

Concentration of vinegar in the titration method will be used by using the below equation:

M₁V₁ = M₂V₂,

  • M₁ & V₁ are the molarity and volume of acetic acid.
  • M₂ & V₂ are the molarity and volume of vinegar sample.

By putting values on above equation from the question, we get

M₂ = (0.55M)(21.5mL) / (28mL) = 0.42 M

Hence, required concentration of vinegar is 0.42M.

To know more about concentration, visit the below link:

brainly.com/question/14469428

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6 0
2 years ago
A substance has a melting point of 80 °C. Which of the following is true for the substance?
Lisa [10]

Answer:

When the substance is cooled, its temperature will fall below 80 °C after 100% of the liquid has changed to solid.

Explanation:

Melting point is the temperature at which a solid changes state to liquid. At the melting point, the phase of matter changes from solid state to a liquid flowing state.

If after a substance is cooled, without reaching its melting point, it will still remain as a liquid. Below the melting point the substance will freeze back to its solid state.

  • For our hypothetical substance whose melting point is  80 °C, it implies that at this temperature, the substance undergoes a phase change from solid to liquid completely.
  • The reverse is also the case, below the melting temperature, all parts of the compound changes back to its original solid state.
8 0
3 years ago
Draw the structure of the compound formed from propanoic acid and dimethylamine
jeyben [28]

 The compound form from propanoic acid and dimethylamine is 3-(dimethylamino)propanoic acid. Propanoic acid is a liquid carboxylic acid that has pungent and unpleasant smell resembling to body odor. Its chemical formula is C2H5C00H. Moreover, dimethylamine is an organic compound and a secondary amine that is colorless, flammable gas with an ammonia like odor. Its chemical formula is (CH3)2NH.

The 2D structure is attached here.

 

                                                                        

                          

Download docx
7 0
3 years ago
Please answer this question​
xz_007 [3.2K]

Answer:

ddpgzgPtflzLfzfzlfM,ogzlgotzgppgzfPlff9_<}<®}®

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6 0
3 years ago
if a lead can be extrated with 92.5% efficiency,what is the mass of ore required to make a lead sphere with 750%cm radius
Lady_Fox [76]
The mass of ore required is 21 700 t.

r = 750 cm

V = \frac{4}{3}  \pi  r^{3} = \frac{4}{3}  \pi  (750 cm)^{3} = 1.767 × 10⁹ cm³

The density of lead is 11.34 g/cm³.

So mass of lead sphere = 1.767 × 10⁹ cm³ × \frac{11.34 g}{1 cm^{3} } = 2.004 ×10¹⁰ g

2.004 ×10¹⁰ g × \frac{1 kg}{1000 g} = 2.004 × 10⁷ kg

2.004 × 10⁷ kg × \frac{1 t}{1000 kg} = 2.004 × 10⁴ t

92.5% efficiency means 92.5 t Pb per 100 t of ore.

Mass of ore = 2.004 × 10⁴ t Pb ×\frac{100 tore}{92.5 t Pb} = 2.17 × 10⁴ t ore = 21 700 t ore

6 0
3 years ago
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