A covalent bond occurs when two atoms share one pair of valence electrons
Brainliest answer please? :)
0.88qt
Explanation:
Given parameters:
Density of ebony wood = 1.174g/ml
Mass of wood = 2.1549lb
Unknown:
Volume of the wood in quarts = ?
Solution:
Density is defined as the mass per unit volume of a substance.
Mass is the quantity of matter the wood contains.
Volume is the space it occupies.
To solve this problem, convert the mass form pounds into grams and plug into the density equation to find volume.
Then convert the volume from mL to quarts.
Density =
Volume =
1 pound = 453.592g
2.1549 lb = 2.1549 x 453.592 = 977.5g
Volume = = 832.6mL
1 quart = 946.353mL
Therefore 832.6mL x = 0.88qt
learn more:
Density brainly.com/question/8441651
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Answer:
(a) 3-ethylpentane (because the longest chain is 5 carbon atoms, and ethyl is positioned at the 3rd carbon atom)
(b) 1, 2-dimethylbutane (because two methyl is positioned at the 2nd and 3rd carbon atom)
(c) 3, 4-dimethylhexane (the longest chain here is 6 carbon atoms, and two methyl is positioned at the 3rd and 4rd carbon atom)
(d) 3-methyl 4-ethylhexane ( the longest chain is 6 carbon atoms, one methyl is positioned at the 3rd carbon atom while one ethyl is positioned at the 4rd carbon atom)
(e) and (f) are similar to the question before... and I dunno how to (g) and (h) cuz I haven't learned it
Hope that you are able to answer the rest!!
Answer: The change in energy of the gas mixture during the reaction is 60 kJ. The reaction is endothermic.
Explanation:
According to first law of thermodynamics:
=Change in internal energy
q = heat absorbed or released
w = work done or by the system
w = work done on the system
w = -155 kJ
q = +215kJ {Heat absorbed by the system is positive}
As the heat is absorbed and enthalpy increases, the reaction is endothermic.
A polar molecule is a water. As a result, polar solutes such as ionic compounds and polar molecular compounds will dissolve in them.
<h3>What are the dissolved substances in water?</h3>
- Coffee, sugar, and salt all dissolve in water. They dissolve easily. In warm or hot water, they usually dissolve more quickly and effectively. Sand and pepper are insoluble; even hot water won't make them dissolve.
- There are three ways that substances can dissolve in water: dissociation, dispersion, and ionization.
Types of dissolved substances that may be present in water:
Ionic chemicals and polar molecular compounds, for example, will dissolve in water since it is a polar molecules.
When it comes to organic compounds, water will dissolve any that have a carbon to oxygen atom ratio of less than or equal to 5.
Because of this, vitamin A is not water-soluble. Vitamin C is soluble, though.
To learn more about substances dissolve in water, refer to:
brainly.com/question/1594437
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