Answer:
We used coal for electricity, water for steam engines when we used them, natural fossil fuels for gasoline and oil and we use earths oxygen/nitrogen gases to breathe
Explanation:
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Answer:
With Apple One, customers can enjoy Apple's subscription services, including Apple Music, Apple TV+, Apple Arcade, iCloud, and more, through one simple plan. ... “With Apple One, you can access the best of Apple entertainment across all your favorite devices with one simple subscription.”
Explanation:
Answer:
i) 16 mL of ethanol
ii) maximum amount recoverable = 15.52 g; percentage recovery = 97%
iii) maximum amount recoverable = 15.1 g
percentage recovery = 94.4%
Explanation:
Solubility = mass/volume
i) mass of ethanol recovered per mL of ethanol when cooled from 78 °C to 0 °C = 0.13 - 0.03 = 0.10 g
Therefore 1.60 g of Y will require a minimum of 1.60 x 1 mL/0.10 g = 16 mL of ethanol
ii) maximum amount of Y that can be recovered is given as :
mass of Y left in solution after recrystallization, x is obtained
0.03 g/mL = x g/16 mL
x = 0.48 g
maximum amount recoverable = 16 - 0.48 = 15.52 g
percentage recovery = (15.52/16) x 100 % = 97%
iii) if 30 mL of ethanol were used:
mass of Y left in solution after recrystallization, x is obtained;
0.03 g/mL = x g/30 mL
x = 0.03 x 30 = 0.9 g
maximum amount recoverable = 16 - 0.9 = 15.1 g
percentage recovery = (15.1/16) x 100% = 94.4%
Name Methane CH4,Butane C4H10,Acetone CH3COCH3 ,Toluene Acetylene CH3C6H5, Ethyl C2H2 ,Alcohol C2H5OH
<h3>The following compound is CH3 CH3 CH2 CH2 CH2 CH3, but what is its IUPAC name?</h3>
Answer and justification A longest carbon chain in the above diagram has seven carbon atoms, as can be observed.The IUPAC nomenclature for this compound is heptane since all of the bonds are single bonds devoid of any functional groups.
<h3>What is this compound's IUPAC name, CH3 CH2 CH2 CH2 CH2 CH?</h3>
When there are nine carbons, the word non is the root.Therefore, nonane is the IUPAC term for CH3-CH2-CH2-CH2-CH2-CH2-CH2-CH3.
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Answer:
A
Explanation:
If a convergent boundary involves a continental landmass and an ocean basin, a subduction zone forms. Subduction occurs where a plate moves underneath the other.