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M&M I-Practice Science

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Write the chemical formulas for each of these gases and select whether the gas is heavier, lighter or about the same as air

 

 

Gas	Chemical Formula	Heavier, lighter or about the same as air
Ammonia
Carbon dioxide
Carbon monoxide
Chlorine
Helium
Hydrogen sulfide
Methane
Nitrogen
Oxygen
Ozone
Sulfur dioxide

 

 

 

 

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

 

 

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

 

 

ORP stands for

1. Orthophophate

2. Oxidation reduction potential

3. Oxidizing reducing potential

4. Oxygen replacement probability

 

Which of the following pHs is most basic?

1. 4

2. 6

3. 8

4. 10

 

Which of the following pHs is most acidic?

1. 4

2. 6

3. 8

4. 10

 

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

 

H⁺, Ca⁺², Mn⁺⁴, and Fe⁺³ are called

 

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