<h3>Answer:</h3>
63.5456 amu
<h3>Solution:</h3>
Data Given:
Atomic Mass of ⁶³Cu = 62.9296 amu
Natural Abundance of ⁶³Cu = 69.17 %
Atomic Mass of ⁶⁵Cu = 64.9278 amu
Natural Abundance of ⁶⁵Cu = 30.83 %
Formula Used:
Average Atomic Mass = [(Atomic Mass of ⁶³Cu × Natural Abundance of ⁶³Cu) + (Atomic Mass of ⁶⁵Cu × Natural Abundance of ⁶⁵Cu)] ÷ 100
Putting values,
Average Atomic Mass = [(62.9296 × 69.17) + (64.9278 × 30.83)] ÷ 100
Average Atomic Mass = [(4352.8404) + (2001.7241)] ÷ 100
Average Atomic Mass = 6354.5645 ÷ 100
Average Atomic Mass = 63.5456 amu
Answer:
A
Explanation:
balance the trades and improving them
The phrase <em>"extremes are the </em><em>nemesis of habitability</em><em>" </em>as it refers to life space means that when things are not done in moderation, there tends to be danger for everyone in the habitat.
Habitation refers to a place where a group of people or organisms live.
As a result of this, we can see, when things are taken to extremes, such as when organisms struggle for food and other basic necessities, there will be a meltdown which can lead to the extinction of that specie in that particular habitat.
With this in mind, it is vital to keep things in moderation so that the organisms or people who live in that habitat can survive.
Read more here:
brainly.com/question/728057
Answer:
D. 37 reports
Explanation:
Last month, he wrote 9 reports, and this month he wrote 28 reports. To find how many he wrote over the past two months, add his reports from last month and this month.
last month + this month
9 reports +28 reports
37 reports
So, he wrote 37 reports, or choice D
