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maks197457 [2]
4 years ago
5

What is catastrophism

Chemistry
2 answers:
BigorU [14]4 years ago
6 0
<span>the theory that changes in the earth's crust during geological history have resulted chiefly from sudden violent and unusual events.

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NNADVOKAT [17]4 years ago
6 0
The theory that changes in the earth's crust during geological history have resulted chiefly from sudden violent and unusual events.
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How many milligrams of product can be produced from the complete Diels-Alder reaction of 180. mg of anthracene and 100. mg of ma
ZanzabumX [31]

Answer: It will be produced 276,3 mg of product

Explanation: The reaction of anthracene (C14H10) and maleic anhydride (C4H2O3) produce a compound named 9,10-dihydroanthracene-9,10-α,β-succinic anhydride (C18H12O3), as described below:

C14H10 + C4H2O3 → C18H12O3

The reaction is already balanced, which means to produce 1 mol of C18H12O3 is necessary 1 mol of anthracene and 1 mol of maleic anhydride.

1 mol of C14H10 equals 178,23 g. As it is used 180 mg of that reagent, we have 0,001 mol of anthracene. With it, the reaction produces 0,001 mol of C18H12O3.

As 1 mol of C18H12O3 equals 276,3 g, the mass produced is 276,3 mg.

3 0
3 years ago
What is this process of producing more offspring than possibly survive called?
tamaranim1 [39]

Darwin's Theory of Evolution by Natural Selection.

Darwin divided this theory into multiple parts but overall it fits into Darwin's Theory of Evolution by Natural Selection, so that would be your answer.

In case you're wondering about the others:

1. Organisms produce more offspring than actually survive.

2. Every organism must struggle to survive.

3. There is variation within a species.

4. Some variations allow members of a species to survive and reproduce better than others.

5. Organisms that survive and reproduce pass their traits to their offspring, and the helpful traits gradually appear in more and more of the population.

(these are brief explanations, they go into more detail)

Good luck!

4 0
3 years ago
Acetylenic fatty acids are found in many tropical plants. Compound B, C18H32O2, is one such compound; it absorbs 2 equivalents o
Rufina [12.5K]

Answer:no

Explanatio:

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3 0
3 years ago
How many metals are on the periodic table?
Blababa [14]
There are 84 metal elements 
3 0
3 years ago
When water changes states from a liquid to gas , the water molecules move far apart . True or false? (6th grade science)
ella [17]

Answer:true

Explanation:

4 0
4 years ago
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