The pH of distilled water is 7. This is the neutral pH, showing that the ratio of H+ ions and OH- ions is at equilibrium.
The correct answer is species
Answer:(16)(2000)m/s=32000m/s
Explanation: A diatomic oxygen has a molar mass of 16
Complete Question
The complete question is shown on the first uploaded image
Answer:
The pressure is 
Explanation:
From the question we are told that
The mass of the carbon monoxide is 
The temperature at which takes place 
The volume of the sealed vessel is 
Generally the ideal gas law is mathematically represented as

Where R is the gas constant with value 
n is the number of moles of carbon monoxide which is mathematically evaluated as

where
is the molar mass of carbon monoxide which is a constant with value

So 

Now Making P the subject we have


Answer:
An emerald can be described as a pure substance because it is a compound. it's a pure substance because it is an element. It's an impure substance because it is chemically combined, an impure substance because it is a mixture.
Explanation: