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Y_Kistochka [10]
3 years ago
14

After the transfer of electrons, calcium becomes an ion with a charge of Fill in the blank text field 5

Biology
1 answer:
pychu [463]3 years ago
8 0

Answer:

Calcium becomes an ion with a charge of 2+

Oxygen becomes an ion with a charge of -2

Explanation:

since calcium lost two electrons, it has 20protrons, but only 18 electrons. this makes calcium a positive ion with a charge of 2+

An oxygen molecule consists of two oxygen atoms that have a double bond between each other and share valence electrons. the oxygen ion is formed when the atom of oxygen gains two valence electrons. this results in an oxygen ion with a charge of -2

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The creationist and evolutionist are in agreement on all of the following items except:
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Increased global temperatures have decreased disease incidence of the cattle, leading to their increased growth.

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The complete question is -

Average cattle size over the past 100 years has increased steadily. Cows, on average, are more than 100 pounds heavier than they were a century ago. What is the most likely explanation of the increases observed in the cows?

A- Increased global temperatures have decreased disease incidence of the cattle, leading to their increased growth.

B- Increased water availability as water levels rise increased the growth and mass of the cattle.

C- Decreased competition with other mammal species in the wild has increased the aver-age growth rate of cattle.

D- Humans have bred the cattle to have improved genetics that increase growth rates and mass.

8 0
1 year ago
You catch, tag, and release 35 fish back into a pond. Then, you catch 70 more fish, 12 of which have tags on them. What is the b
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Answer:

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Explanation:

proportion : 12/70 = 35/x

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Round : there is about 204 fish in the pond

8 0
3 years ago
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