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Doss [256]
3 years ago
5

Which object reflects light with with the longest wave

Chemistry
1 answer:
jasenka [17]3 years ago
8 0

The Yellow Book. The yellow book is the object that reflects light with the longest wavelength. In the visible spectrum the color with the shortest wavelength is violet while the longest is red

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Calculate the total pressure in a 10.0 liter flask at 27°C of a sample of gas that contains 6.0 grams of hydrogen, 15.2 grams of
motikmotik

Answer:

The total pressure is 27.8 atm

Explanation:

From the ideal gas equation,

PV = nRT

P (total pressure) = nRT/V

n (total moles of gases) = (6/1 moles of hydrogen) + (15.2/14 moles of nitrogen) + (16.8/4 moles of helium) = 6+1.1+4.2 = 11.3 moles

R = 0.082057L.atm/gmol.K, T = 27°C = 27+273K = 300K, V = 10L

P = 11.3×0.082057×300/10 = 27.8 atm

7 0
3 years ago
Which of these are examples of negative tropism? (Select all that apply.)
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Negative tropism is the growth or movement of an organism away from a stimulus. A common example that can be used to explain negative tropism is the shoot of the plants that grow against gravity
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3 years ago
Calcium (Ca) and diatomic oxygen (O2) combine to form calcium oxide (CaO). The data table below compares the properties of these
Elenna [48]

A chemical reaction occurred because calcium oxide has different properties than calcium and diatomic oxygen. The correct option is A.

<h3>What are chemical reactions?</h3>

A chemical reaction is said to occur when the chemical properties of substances change during the course of the reaction.

From the illustration, the chemical properties of calcium oxide are unique from that of calcium and oxygen. Thus, calcium oxide has become a new substance entirely.

Once a reaction leads to the formation of new substances, such a reaction is a chemical reaction.

More on chemical reactions can be found here: brainly.com/question/22817140

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3 0
2 years ago
Write a story of your life when you were hurted by someone whom you trusted blindly...​
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Answer:

Sis I think it happened with me but I am not able to remember if u want u can share if it happened with u

4 0
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The section "The Necessary Resources" introduces the idea that communism was a reaction to capitalism.The section "Karl Marx And
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Answer:

(A)explaining how Marx believed the goals of communism would fix the problems of capitalism.

Explanation:

In the section, "The Necessary Resources", after listing the four resources needed for an economic system to thrive, the author explained the practice of capitalism in the mid-1800s, where people owned private property and how Karl Marx and Friedrich Engels came up with the notion that capitalism did not allow for the fair distribution of resources.

In the section, "Karl Marx and Communism", further explanation was provided as to how Marx felt that capitalism caused a gap between the rich and the poor, how that system was unfair to poorly paid workers and how communism will soon replace capitalism.

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3 years ago
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