The theory of plate tectonics is supported

1 answer:

5 0

Alfred Wegner was the first person to propose the idea that all seven continents were all one supercontinent called "Pangea". Everyone considered his theory to be a joke until he found evidence to back up his theory. His evidence was the matching mountain ranges, fossils, certain species, and more over different continents. Also that all the seven continents fit together like puzzle pieces. I hope this helps! :)

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The equation below shows the decomposition of lead nitrate. how many grams of oxygen are produced when 11.5g NO2 is formed?

Soloha48 [4]

Number of moles of NO2 = 11.5/(14+16x2) =0.250mol
Mole ratio: 4NO2 to 1O2
Number of moles of O2=0.250/4 =0.0625mol
Mass of O2 produced= 0.0625x32 =2g
Answer: B

7 0

3 years ago

6 tons of pig ovaries were required to extract 13.0 mg of estrone. Assuming complete isolation of the hormones was achieved, cal

jasenka [17]

One US ton will be equal to 907.185 kg and 1kg will be equal to 10^6mg.

mass percentage of estrone= estrone mass/tissue mass * 100%
mass percentage of estrone= 13mg/ (6 tons * 907.185 kg /ton * 10^6mg/kg) * 100%
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RideAnS [48]

Answer:

I think it's c (viewpoint)

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3 years ago

Calculate the molar mass of the following compound COSO4: ______ g/mole

drek231 [11]

Answer:

155.0

Explanation:

Co = 58.933

S = 32.065

O = 15.999 * 4

total = 154.994 or 155.0

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2 years ago

What is true about a pseudoscientific idea

DENIUS [597]

Something that claims to or appear to be scientific, but is not. For example astronomy is science but astrology is at times pseudoscientific.

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