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Answers for I-Practice Science

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Write the chemical reactions for denitrification starting with nitrate in chemical symbols and their chemical names

NO3- → NO2- → N2↑

 

Nitrate → Nitrite → Nitrogen gas

 

Write the chemical reactions for nitrification starting with ammonia in chemical symbols and their chemical names

NH3 → NO2- → NO3-

 

Ammonia → Nitrite → Nitrate

 

ORP stands for

  1. Orthophophate

  2. Oxidation reduction potential

  3. Oxidizing reductng potential

  4. Oxygen replacement probability

ORP stands for B.  Oxidation reduction potential

 

Which of the following pHs is most basic?

  1. 4

  2. 6

  3. 8

  4. 10

The most acidic pH is D.  10

 

Which of the following pHs is most acidic?

  1. 4

  2. 6

  3. 8

  4. 10

The most acidic pH is A.  4

 

OH-, Cl-, SO4-2, and HCO3- are called

    Anions

 

H+, Ca+2, Mn+4, and Fe+3 are called

    Cations

 

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