Nonrenewable<span> energy </span>resources, like coal, nuclear, oil, and natural gas, are available in limited supplies. This is usually due to the long time it takes for them to be replenished.Renewable resources<span> are replenished naturally and over relatively short periods of time</span>
Answers:
Hydrogen bond is formed when positive end of one molecule attracted negative end of other molecule. The concept is similar to magnetic attraction where opposite poles attract each other.
Explanation:
While understanding hydrogen bond, two terms are important, one is electronegativity (tendency of atoms to attract electrons towards itself) and other is dipole (separation of positive and negative charge in a molecule). Hydrogen bond is always formed between hydrogen atom and other atoms having electronegativity different than hydrogen.
Differ from Ionic and Covalent Bonds:
Hydrogen bond is weaker than ionic and covalent bond. Ionic and covalent bonds are intramolecular (within the molecule) whereas hydrogen bond is intermolecular (between molecules).
Example:
Formation of hydrogen bonding in water.
Answer:
A cell wall is a fairly rigid layer surrounding a cell located outside of the plasma membrane that provides additional support and protection. They are found in bacteria, archaea, fungi, plants, and algae. Animals and most other protists have cell membranes without surrounding cell walls.
Explanation:
Answer:
Can be produced 288mL of SO₂
Explanation:
Based in the reaction:
P₄S₃ + 8O₂ → P₄O₁₀ + 3SO₂
<em>Where 1 mole of tetraphosphorus trisulfide reacts producing 3 moles of sulfur dioxide gas.</em>
0.869g of tetraphosphorus trisulfide (Molar mass of P₄S₃: 220.09g/mol) are:
0.869g P₄S₃ ₓ (1mol / 220.09g) = 3.948x10⁻³ moles of P₄S₃
As 3 moles of SO₂ are produced per mole of P₄S₃:
3.948x10⁻³ moles of P₄S₃ ₓ (3 moles SO₂ / 1 mole P₄S₃) = 0.0118 moles SO₂
Using PV = nRT
V = nRT / P
<em>Where n are 0.0118 moles, R gas constant (0.082atmL/molK), T absolute temperature (21.0°C + 273.15K = 294.15K), and P pressure (751torr / 760 = 0.988atm).</em>
Replacing:
V = 0.0118molₓ0.082atmL/molKₓ294.15K / 0.988atm
V = 0.288L = 288mL
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Answer:
Follows are the solution to the given points:
Explanation:
In point a:
Just the y-axis graph intensity as well as the "y" absorption. Find a path or intercept utilizing Excel or simple math.
In point b:
There are two different ways:
Graphically = Then add the unknown absorbance.
Its intensity of the unknown, if they consider the y axis to pull the straight line to the line marked but instead drop it off on the x-axis.
= resolve, 
from of the line even for the x variable and also get on
Plug 
and the un-concentration is also in place
