1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
goldfiish [28.3K]
3 years ago
7

Wegener first began to think about his continental drift hypothesis when he noticed a similarity in _____ on different continent

s.
a)coastlines
b)animals
c)climates
d)cultures
Chemistry
2 answers:
ra1l [238]3 years ago
8 0

Answer: coastlines

Explanation:

Maslowich3 years ago
5 0
The correct answer is a) coastlines

He notices that the continents could be placed to fit each other like a jigsaw puzzle, so he devised his hypothesis.
You might be interested in
How do people start alcohol consumption​
Debora [2.8K]

Answer:

Explanation:Due to the mental pressure,

                       Due to peer pressure,

                      Lack of love and affection from the family members.

                      Influence from the T.V advertisement.

                       

6 0
2 years ago
What is the common name of CuCO3
Vikki [24]
Copper(||) carbonate 
5 0
3 years ago
Read 2 more answers
why when you mix three different colors the new color you see is brighter than the original colors you mixed
maria [59]

Answer:

Mixing colored lights & mixing colored paints. The primary colors of light are also known as the additive colors, because, when you add these three colors of light (red, green and blue) your brain perceives white light. The primary colors of paints, however, are known as subtractive colors.

Explanation:

<em>Your </em><em>well-wisher</em>

8 0
2 years ago
The fermentation of glucose (C6H12O6) produces ethyl alcohol (C2H5OH) and CO2:
Jlenok [28]
To answer your question I will use dimensional analysis, which is used by cancelling out the units. I will also use the balanced equation provided as a conversion factor.

A) First start out with the 0.300 mol of C6H12O6...
0.300 mol C6H12O6 * (2 mol CO2 / 1 mol C6H12O6) = 0.600 mol CO2

*The significant figures (sig figs) at still three, the 2 is a conversion counting number and does not count*

B) First change 2.00 g of C2H5OH to moles of C2H5OH...
The molecular mass of C2H5OH is...
2(12.01 g/mol) + 5(1.008 g/mol) + 16.00 g/mol + 1.008 g/mol = 46.07 g/mol
This can be used as a conversion factor to change grams to moles. 
2.00 g C2H5OH * (1 mol C2H5OH / 46.07 g C2H5OH) = 0.0434 mol C2H5OH

Second, you can change the moles of C2H5OH to moles of C6H12O6..
0.0434 mol C2H5OH * (1 mol C6H12O6 / 2 mol C6H12O6) = 0.0217 mol C6H12O6

Third, change moles of C6H12O6 to grams...
MM = 6(12.01 g/mol) + 12(1.008 g/mol) + 6(16.00 g/mol) = 180.16 g/mol
0.0217 mol C6H12O6 * (180.16 g C6H12O6 / 1 mol C6H12O6) = 3.91 g C6H12O6

C) Now I am going to put it all into one long dimensional analysis problem.
MM of CO2 = 44.01 g/mol
MM of C2H5OH = 46.07 g/mol

2.00 g C2H5OH * (1 mol C2H5OH / 46.07 g C2H5OH) * (2 mol CO2 / 2 mol C2H5OH) * (44.01 g CO2 / 1 mol CO2) = 1.91 g CO2

I hope this helped and I am sorry that I talked to much, I just didn't want to miss anything!
3 0
2 years ago
Defination of dative covalent bond
mixer [17]
<h2>♨ANSWER♥</h2>

In coordination chemistry,

A coordinate covalent bond also known as a <em>dative bond, dipolar bond, or coordinate bond</em> is a kind of two-center, two-electron covalent bond in which the two electrons derive from the same atom. The bonding of metal ions to ligands involves this kind of interaction.

<u>☆</u><u>.</u><u>.</u><u>.</u><u>hope this helps</u><u>.</u><u>.</u><u>.</u><u>☆</u>

_♡_<em>mashi</em>_♡_

5 0
2 years ago
Read 2 more answers
Other questions:
  • The pH of a solution is 2.0. Which statement is correct?
    12·2 answers
  • HELP PLZ :(((((((
    7·2 answers
  • N iron chloride compound contains 55.85 grams of iron and 106.5 grams of chlorine. what is the most likely empirical formula for
    12·1 answer
  • The boiling point of a substance is a chemical property true or false​
    14·2 answers
  • 1. 1-propanol can form __________ with _______, but butane cannot.2. 1-propanol is more soluble than ethyl methyl ether because
    15·1 answer
  • What does not represent a compound
    14·1 answer
  • Identify each of the following properties as more typical of organic or inorganic compound
    7·1 answer
  • Also write what will happen if you mix ‘recyclable, non-recyclable, liquid, e-waste’ and dump it in the Garbage bins/Garbage roo
    10·1 answer
  • **The diagram below shows the Earth at four different positions in its journey around the Sun.
    5·2 answers
  • Two students made a model of the world's tallest building, the Burj Khalifa in Dubai. The scale of the model is 1:400. The stude
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!