In order to calculate the percent of water in the hydrate, we need to know the amount of water that is lost after heating. We simply subtract the initial amount and the final amount. We do as follows:
mass of water = 15.60 g - 8.63 g = 6.97 g
Percent water = 6.97 / 15.60 x 100 = 44.68%
Answer:
The number of principle energy level increases and the number of valance electrons remain the same.
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The balanced nuclear equation for the β emission of the following isotopes is seen below:
92 92 0
Sr ⇒ Y + e
38 39 -1
<h3>
What is Beta emission?</h3>
This is also known as beta decay in which a beta ray is emitted from an atomic nucleus.
The element formed during the beta emission of strontium is referred to as Yttrium.
Read more about Beta emission here brainly.com/question/16334873
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The answer is D I hope this helps you !
