Answer:
The value of k is equal to 9.
Explanation:
The given number is 4,522,800,000
We need to write it n the form of a×10ᵇ.
We will count the numbers after 4 in the given number. There are 9 number after 4. So,
So, we can say that the value of k is equal to 9.
Fusion/Melting Freezing Vaporization/Boiling Condensation Sublimation Deposition Solid to a Liquid Liquid to a Solid Liquid to a Gas Gas to a Liquid Solid to a Gas Gas to a Solid
Answer:
An acid is a compound that increases hydrogen ions (H+) when it is dissolved in a solution.
The term alkaline is related to compound that increases the hydroxide ions (OH−) when it is dissolved in a solution.
pH refers to a value from 0 to 14 that is used to specify how acidic or basic a compound is when it is dissolved in water
An ion is an atom or molecule that has a positive or negative charge.
Explanation:
Answer:
When fossil fuels are burned, carbon- dioxide and other greenhouse gases are released which trap the Sun's heat and can lead to global warming. The over heating of the atmosphere can put ecosystems under pressure especially the tundra regions.
only reactants are present
If equllibrium constant is greater than 10^3 then product
predominates
If equllibrium constant is greater than 10^ -3 then reactant predominates
in between 10^3 and 10^-3 the reaction is in equllibrium
and we see that the above value is 10^-31, it is very small so the answer is reactants are presents