Answer:
hen the number of neutrons is known and the atomic number of an element is known, it becomes easier to determine the approximate mass number by adding the two.
Explanation:
Hope it shelps
Answer:
P2N5
Explanation:
you have to plus it 2 times
Answer:
- Break down a problem into smaller units or sub-problems.
- Reverse engineering, or taking something apart so as to evaluate and provide solutions.
Explanation:
For the first one, if you are a computer engineer for example, it is hard to troubleshoot a whole program but if you write small stand alone sections, you can easily troubleshoot the smaller section.
Answer : 7.87 X
.
Explanation : To find the fraction of schottky defects in the given lattice of CsCl,
we use the formula,
on solving with the given values ,
and T as 645 + 273 K and rest are the constants.
we get the answer as 7.87 X
.
The following aqueous solutions represents good buffer systems:
- 0.22 M acetic acid + 0.15 M potassium acetate
- 0.29 M ammonium nitrate + 0.32 M ammonia
<h3>What is a buffer?</h3>
A buffer is a solution used to stabilize the pH (acidity) of a liquid.
A good buffer system is generally known to contain close or equal concentrations of a weak acid and its conjugate base.
Based on the above explanation, the following represents a good buffer system as they are between their weak acid and conjugate base:
- 0.22 M acetic acid + 0.15 M potassium acetate
- 0.29 M ammonium nitrate + 0.32 M ammonia
Learn more about buffer at: brainly.com/question/22821585
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