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konstantin123 [22]
3 years ago
11

Please Help Me on this!!!! I'll Mark Brainliest!!!!! Thanks!!!!!!

Chemistry
2 answers:
makvit [3.9K]3 years ago
8 0

Answer:

15.999amu

Explanation:

There is way more O16 than any other, so O17 and O18 affect it very little.

Stella [2.4K]3 years ago
5 0

Answer:

The answer is 15.999 amu

Explanation:

Data:

mO16 = 15.995 amu

mO17 = 16.999 amu

mO18 = 17.999 amu

%O16 = 99.757%

%O17 = 0.038%

%O18 = 0.205%

The molecular mass of oxygen is going to be equal to:

mO = \frac{(mO16xpercentO16)+(mO17xpercentO17)+(mO18xpercentO18)}{100}

replacing, we have:

mO = \frac{(15.995x99.757)+(16.999x0.038)+(17.999x0.205)}{100} = 15.999489 amu

this is approximately 15.999 amu

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What is 8.3 x 10^4 in standard form
seraphim [82]

Explanation:

83,000 is 8.3x10^4 in standard form

when it's a positive move decimal to the right as many as exponent say

if it's negative move decimal to left and and zeros till you move what exponent says

8 0
3 years ago
. The ring shape of the Cartwheel Galaxy is due to:
dlinn [17]

The ring shape of the Cartwheel Galaxy is due to collisions with another galaxy.

<h3>What causes the ring shape of the Cartwheel Galaxy?</h3>

The unusual shape of the Cartwheel Galaxy is due to a collision with a smaller galaxy. The recent star burst has lighted up the Cartwheel rim which has a diameter larger than that of the Milky Way galaxy in which our planet exists. The Cartwheel Galaxy is a lenticular ring galaxy which is about 500 million light-years away. This galaxy was discovered by Fritz Zwicky in the year 1941.

So we can conclude that the ring shape of the Cartwheel Galaxy is due to collisions with another galaxy.

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7 0
1 year ago
How would one convert 6 pounds to ounces (16 oz = 1b)?
NNADVOKAT [17]

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D.

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I just got it right in the test :)

6 0
3 years ago
Write a statement that shows how the charge of an ion relates to the number of electrons transferred.
DanielleElmas [232]

Answer:

Q = ne

Explanation:

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Hence, the charge of an ion relates to the number of electrons transferred is equal to Q = ne.

7 0
3 years ago
One liter of water at 10 degrees celsius is added to one liter of water at 80 degrees celsius. what is the final temperature of
notka56 [123]
Find the average of these 2 temperatures, since they have the same volume.

(80 + 10) ÷ 2 = 90 ÷ 2 = 45°C

You can only use this method of averaging them out because they have the same volumes :)
3 0
3 years ago
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