Which belief is the basis of Ptolemy's geocentric model of the solar system?
Answers
Answer:
"Earth-centered," or "geocentric" Ptolemy thought that all celestial objects — including the planets, Sun, Moon, and stars — orbited Earth. Earth, in the center of the universe, did not move at all.
Explanation:
Answer:
Geocentric
Explanation:
Its the belief that earth was the center of the solar system instead of the sun
Related Questions
What is the freezing point of an aqueous solution that boils at 105.0 ∘C? Express your answer using two significant figures.
Corn, Cotton, Tobacco, and Wheat are examples of what?Question 3 options: Plantations Economies Colonies Cash Crops
What would be the molecular formula for a triglyceride that contains 3 copies of the fatty acid below?
Maple syrup, which comes from the sap of maple trees, contains water and natural sugars. It's a clear, brown liquid and the sugars can’t be separated by filtration. Under which category will you classify it?
Which ion is represented by X?
(1) hydroxide (3) hypochlorite
(2) hydronium (4) perchlorate
Answers
Answer: The correct answer is Option 2.
Explanation:
For the given options:
Option 1:Hydroxide ion
The chemical formula for this ion is
Option 2:Hydronium ion
The chemical formula for this ion is
Option 3:Hypochlorite ion
The chemical formula for this ion is
Option 4: Perchlorate ion
The chemical formula for this ion is
For the given chemical reaction:
The ion represented by X is hydronium ion.
Hence, the correct answer is Option 2.
B. It depends on how a substance was formed.
C. It is the same for every sample of every substance.
D. It depends on the amount of substance present.
Answers
An intensive property of matter is independent of the amount of substance present and is inherent to the material itself. Thus, the correct statement is 'It is the same for every sample of a single substance.' Examples of intensive properties include temperature, density, and color.
An intensive property of matter is a characteristic that does not change based on the amount of a substance. It is independent of the quantity of the substance present and is inherent to the material itself. Therefore, the statement which best describes an intensive property of matter would be 'It is the same for every sample of a single substance.'
Examples of intensive properties include temperature, density, and color. For instance, if you divide a gold bar in half, each half will have the same density and color as the original bar, because these properties are independent of the amount of substance present.
Learn more about Intensive Property here:
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B) look for presence or absence of wisdom teeth
C) multiply the internal distance in centimeters between the coronoid processes by the external distance in centimeters between the jaw angles(mandibular angles)
D) look for shovel shaped incisors
(It's not C)
Answers
Answer:
B) look for presence or absence of wisdom teeth
Explanation:
The only way to make a reliable guess if a victim was under 17 years old is by looking if he already had the wisdom teeth, this teeth are located in the back of the mouth, and are the third molars that humans develop after the age of 17 or 18 years on average, some could develop them after.
hydronium ions
electron pairs
hydroxide ions
Answers
The correct option is COVALENT BONDS.
A Lewis acid is defined as a substance which accept a pair of electron while a Lewis base refers to a substance that donate an unshared pair of electrons to another chemical specie with which it shared the donated pair of electrons.
Lewis acid and Lewis base react together to form salt and water. This type of reaction is called neutralization reaction. The neutralization reaction of Lewis acid and Lewis base involves electron pairs transfer, thus, there is an increase in the number of covalent bonds during this reaction.
Answer:
The correct answer is "covalent bonds".
Explanation:
A covalent coordinated or dative bond is formed when two atoms are linked together, sharing a pair of electrons. But only one of these atoms is the one that brings the pair of shared electrons. For this type of bond to occur, it is required that the donor atom has a pair of free electrons in an outer orbital and the acceptor atom has the capacity to receive that pair of electrons in its last valence layer.
On the other hand, a Lewis base is a substance that can share or donate a pair of electrons, because they have a pair of solitary electrons. A Lewis acid is that substance that accepts or takes a pair of electrons because they have their last electron layer incomplete.
It is then possible to say that an Lewis acid-base reaction is formed by the Lewis acid and base joined by a coordinated covalent bond.
So, the correct answer is "covalent bonds".
Answers
The concentration of the resulting solution is 0.33 M. The correct option is 3. 0.33 M
Dilution
From the question, we are to determine the concentration of the resulting solution
From the dilution law,
M₁V₁ = M₂V₂
Where M₁ is the initial concentration
V₁ is the initial volume
M₂ is the final concentration
V₂ is the final volume
From the given information
M₁ = 1.0 M
V₁ = 20 mL
M₂ = ?
V₂ = 60 mL
Then,
1 × 20 = M₂ × 60
20 = M₂ × 60
Therefore,
M₂ = 20 ÷ 60
M₂ = 0.33 M
Hence, the concentration of the resulting solution is 0.33 M. The correct option is 3. 0.33 M
Learn more on Dilution here: brainly.com/question/5685564
1.0 * 20 = C₂ * 60
20 = C₂ * 60
C₂ = 20 / 60
C₂ = 0.33 M
hope this helps!
water
B.
uranium
C.
sunlight
D.
wind