On the surface of the earth, weight is calculated by multiplying mass and gravity. Because we know the radius of the Earth, we can use the Law of Universal Gravitation to calculate the mass of the Earth in terms of the gravitational force on an object (its weight) at the Earth's surface, using the radius of the Earth as the distance.
I think this is the question you were trying to ask if not, ill try it again
Answer : The conditional formation constant is 
Explanation :
First we have to calculate the formation constant.
As we are given that:
Thus, the formation constant is 
Now we have to calculate the conditional formation constant.
The expression used as:
where,
= conditional formation constant = ?
= activity coefficient at pH 9.00 = 0.041
= formation constant =
Now put all the given values in the above expression, we get:
Therefore, the conditional formation constant is
A.Because the Carbon dioxide in the air mixes it to form carbonic acid
Answer:
hair is a physical change.
Cooking is a physical and chemical change.
Ice cream melting in the sun is a physical change.
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