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siniylev [52]
3 years ago
6

Thermal pollution is when the temperature of a body of water is increased due to warmer water being added.

Chemistry
2 answers:
Sonja [21]3 years ago
8 0

Answer:

true

Explanation:  pull in relatively cool water to cool their machinery and let the relatively warm water flow back into the river or lake or sea. ... Water on hot paved surfaces gets hot, then runs off into nearby bodies of water, raising the water temperature

Montano1993 [528]3 years ago
7 0

Answer:

True

Explanation:

Heat is classified as is classified as a water pollutant when it is caused by heated industrial effluents or from anthropogenic (human) alterations of stream bank vegetation that increase the water system temperatures due to solar radiation.

Hope that helps

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A compound is composed of only C, H, and O. The combustion of a 0.519-g sample of the compound yields 1.24 g of CO 2 and 0.255 g
vredina [299]

Answer:

      \large\boxed{\large\boxed{C_3H_3O}}

Explanation:

<u>1. Calculate the mass of C in 1.24 g of CO₂</u>

   1.24gCO_2\times \dfrac{12.011gC}{44.01gCO_2}=0.3384gC

<u>2. Calculate the mass of H in 0.255g of H₂O</u>

     0.255gH_2O\times \dfrac{2.016gH}{18.015gH_2O}=0.02854gH

<u />

<u>3. Calculate the mass of O by difference</u>

     0.519g-0.3384g-0.02854g=0.15206g

<u>4. Convert every mass to number of moles:</u>

  • C: 0.3384g / (12.011g/mol) = 0.02817 mol
  • H: 0.02854g / (1.008g/mol) = 0.02831 mol
  • O: 0.15206g / (15.999g/mol) = 0.009504 mol

<u />

<u>5. Divide every number of moles by the least number of moles (0.009504):</u>

  • C: 0.02817/0.009504 = 2.96 ≈ 3
  • H: 0.02831 / 0.009504 ≈ 3
  • O: 0.009504 / 0.009504 = 1

<u>6. Those numbers are the respective subscripts in the empirical formula:</u>

     C_3H_3O

7 0
3 years ago
The use of genetics by farmers to produce more abundant and healthier crops is an application of the science of _____.
Klio2033 [76]
<h3>Question :</h3>

The use of genetics by farmers to produce more abundant and healthier crops is an application of the science of _____.

  • DNA profiling

  • biotechnology

  • molecular biology

  • nuclear genetics

<h3>Answer :</h3>

The use of genetics by farmers to produce more abundant and healthier crops is an application of the science of <u>biotechnology</u>.

So correct option is 2nd biotechnology.

<h3>Explanation :</h3>

Biotechnology is the use of biological structures and processes for useful industrial purposes, whether product or function.

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Hi, I'm lost on which ones to choose on this CHEM Problem.
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