Answer:
The correct answer is 150 kilograms.
Explanation:
Based on the given information, the ratio of zinc and copper within the alloy is 2:5. The amount of zinc used in the alloy is 60 kg. Now the amount of copper used within the alloy would be,
Zinc/Copper = 2/5
60/Copper = 2/5
Copper(Cu) = 60*5/2
Cu = 150 Kilograms.
Thus, the amount of Cu used in the alloy is 150 Kg.
Answer: Function
Explanation: Zinc is found in cells throughout the body.
It is needed for the body's defensive (immune) system to properly work.
It plays a role in cell division, cell growth, wound healing, and the breakdown of carbohydrates.
Benzene diazonium salt reacts by coupling with activated aromatic rings as aniline and phenol and in this case diazonium acts as weak electrophile and react with substitution on para position according to the following reaction:
1000m = 1km
92.25m= ?
We cross multiply
92.25/1000
= 0.09225
Therefore, 92.25m = 0.09225km
Answer:
C. 10^-7.
Explanation:
Hello,
By taking into account that the eventual added ion to the water is removed, it means that after the time goes by, to water will remain pure, so one knows that it implies a pH of 7. Such pH is related with a Ka of 10^-7 based on the mathematical description of pH:
As long as matches with Ka, it turns out into:
Best regards.