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Blababa [14]
3 years ago
12

What is the net ionic charge of an oxygen ion?

Mathematics
2 answers:
bixtya [17]3 years ago
5 0

Answer:

One oxygen ion has a net ionic charge of -2

Step-by-step explanation:

One Oxygen ion has a total of 10 electrons (-10 charge), but only 8 protons (+8 charge). This calculates to a net ionic charge of -2. Hope this helps! :)

Paraphin [41]3 years ago
3 0

Answer: u need to go to mr.google sir/mam

Step-by-step explanation:

ur mom

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A baker buys 19 apples of two different varieties to make pies. The total cost of the apples is $5.10. Granny Smith apples cost
Natasha2012 [34]

The baker bought 7 gala apples, and 12 granny smiths apples

<em><u>Solution:</u></em>

Let "x" be the number of gala apples bought

Let "y" be the number of granny smith apples bought

Cost of 1 gala apple = $ 0.30

Cost of 1 granny smith apple = $ 0.25

<em><u>A baker buys 19 apples of two different varieties to make pies</u></em>

Therefore,

number of gala apples bought + number of granny smith apples bought = 19

x + y = 19 --------- eqn 1

<em><u>The total cost of the apples is $5.10</u></em>

Therefore, we can frame a equation as:

number of gala apples bought x Cost of 1 gala apple + number of granny smith apples bought x Cost of 1 granny smith apple = 5.10

x \times 0.30 + y \times 0.25 = 5.10

0.3x + 0.25y = 5.1 -------- eqn 2

<em><u>Let us solve eqn 1 and eqn 2</u></em>

From eqn 1,

x = 19 - y ---------- eqn 3

<em><u>Substitute eqn 3 in eqn 2</u></em>

0.3(19 - y) + 0.25y = 5.1

5.7 - 0.3y + 0.25y = 5.1

5.7 - 0.05y = 5.1

0.05y = 5.7 - 5.1

0.05y = 0.6

y = 12

<em><u>Substitute y = 12 in eqn 3</u></em>

x = 19 - 12

x = 7

Thus the baker bought 7 gala apples, and 12 granny smiths apples

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3 years ago
A black line is shorter than a white line.the white line is shorter than a gray line. Is the black line longer or shorter than t
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A television newscaster from a 24-hour news station wants to estimate the number of hours per day its viewers watch
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Answer:

This isn't the best worded question but from what I understand a larger sample size decreases the margin of error. If he would like a more accurate answer a larger sample size of the viewers will give more accurate answers.

Step-by-step explanation:

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2 years ago
Evaluate x2 + y3. If x =2 and y=1/4. Write your answer in simplest form. I need it now!
mart [117]
If x equals 2 and y equals 1/4 , the equation is 2 • 2 + 1/4 • 3
and that equals 4.75
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36=2+(-12.4)<br> please helpssss
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I believe the answer is 36= -10.4!
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