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3 years ago

Describe the hypothesis of continental drift.

Chemistry

1 answer:

ludmilkaskok [199]3 years ago

3 0

Answer:

Continental drift was a theory that explained how continents shift position on Earth's surface. It was a prediction look-alike animal and plant fossils, and similar rock formations, are found on different continents.

Explanation:

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Can someone answer this question? It's not that long

Kitty [74]

Answer:

sections 2 and 3

Explanation:

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3 years ago

What is the percent by mass of sodium in Na2SO4? total mass of element in compound molar mass of compound Use %Element x 100

Kisachek [45]

What is the percent by mass of sodium in Na2SO4? total mass of element in compound molar mass of compound Use %Element x 100

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4 years ago

Identify the number of moles in 369 grams of calcium hydroxide. Use the periodic table and the polyatomic ion resource.

topjm [15]

Answer : The number of moles in 369 grams of calcium hydroxide is, 4.98 moles

Explanation : Given,

Mass of calcium hydroxide = 369 g

Molar mass of calcium hydroxide = 74.093 g/mole

Formula used :

$\text{Moles of calcium hydroxide}=\frac{\text{Mass of calcium hydroxide}}{\text{Molar mass of calcium hydroxide}}$

Now put all the given values in this formula, we get the moles of calcium hydroxide.

$\text{Moles of calcium hydroxide}=\frac{369g}{74.093g/mole}=4.98mole$

Therefore, the number of moles in 369 grams of calcium hydroxide is, 4.98 moles

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4 years ago

Identify each definition that applies to the compound in red. Check all that apply.

andre [41]

Answer:

Arrhenius acid & Bronsted-Lowry acid

Explanation:

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3 years ago

Which of these sentences describes a benefit of fracking?

bagirrra123 [75]

Answer is: A. Fracking reduces U.S. dependency on oil and gas from other countries..
Other answers are not bad side of fracking.
Fracking is technique in which rock is fractured by a pressurized liquid and is used in to create cracks in the rock formations through which natural gas, petroleum will flow more freely.

7 0

4 years ago

Read 2 more answers