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vampirchik [111]
2 years ago
10

What is the overall charge for neon,oxide, copper, and tin ?

Mathematics
1 answer:
Finger [1]2 years ago
6 0

Answer:

Neon is stable, hence has no charge.

Oxide (O2-) has a charge of -2

Cooper (Cu2+) has a charge of +2

Tin (Sn2+) has a charge of +2

hence overall charge = -2+2+2

<em><u>Over</u></em><em><u>all</u></em><em><u> </u></em><em><u>charge</u></em><em><u> </u></em>= +2

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The room measures 8 inches by 5 inches on the blueprint. If the scale on the blueprint is 1 inch by 4 feet, what is the actual a
larisa86 [58]
Hi there!

To solve this problem, we need to multiply each number by 4 ft.

8×4=32
5×4=20

Now, we films the area.

32×20 = 640

The area of the room is 640 feet squared.

Hope this helps!
3 0
3 years ago
40% of what number is 18?
vladimir1956 [14]

Answer:

45

40 percent (calculated percentage %) of what number equals 18? Answer: 45.

3 0
3 years ago
Read 2 more answers
Four sisters bought a present for their mother. They received a 10% discount on the original price of the gift. After the discou
Orlov [11]

Answer:

$40

Step-by-step explanation:

x is the original price of the gift

(10% of x) is the value of the discount

(10% of x) = 10/100 . x = 0.1 x

0.1 x    is the value of the discount

x - (10% of x) is what was paid, after the discount

x - 0.1 x = 0.9 x

0.9 x    is what was paid

4 children paid $9/each

4 times $9 = $36

$36 is the total amount that was paid by the children

$36 = 0.9 x

$36 / 0.9 = x

x = $36 / 0.9 = 360 / 9

x = 40

;-)

4 0
3 years ago
Your grade at the start of quarter 3 was a 68, at the end of the quarter it was a 91. What is the percent change in grade?
Georgia [21]
91 - 68 = 23
23/91 x 100= 25.3%
7 0
3 years ago
My first ever question on this site. Hope i will get my answer as i have answer others.
Neko [114]
632=.60 x (it is important to convert the percentage to decimal by dividing by 100) 
632/.60=x
x= 1053.33
x is your original price
the actual answer is 1053.3333(3 repeating) but since it is money you cut it off at 2 decimal points. 
6 0
3 years ago
Read 2 more answers
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