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SCORPION-xisa [38]
4 years ago
8

How does the environment produce biomass energy?

Chemistry
2 answers:
Oksanka [162]4 years ago
7 0
Biomass is organic, meaning it is made of material that comes from living organisms, such as plants and animals. Biomass<span> contains </span>energy<span> first derived from the sun: Plants absorb the sun's </span>energy through<span> photosynthesis. 
Answer - photosynthesis</span>
Marina86 [1]4 years ago
4 0

Answer: Photosynthesis.

Explanation:  

Biomass can be defined as the energy that is derived from the sun. Plants absorb the energy from the sun and converts it into chemical energy by the process known as photosynthesis.

Biomass can be burnt to produce heat and energy, this heat is converted into electricity. This biomass can be used by  processing the chemical energy into biofuel.

 

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Baking soda and hydrochloric acid
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3 years ago
Do pure substances have the same chemical and physical properties
Darya [45]
No, some impurities may alter the observed effects of a chemical reaction.. during a reaction other products may be produced, they may alter the MP or BP of the pure substance.  
4 0
3 years ago
The following anions can be separated by precipitation as silver salts: Cl- , Br- , I- , CrO4 2-. If Ag is added to a solution c
dalvyx [7]

Answer:

AgI, AgBr, AgCl and Ag₂CrO₄

Explanation:

Ksp (product solubility constant) is defined as the equilibrium constant of the general reaction:

XₐYₙ(s) → aXⁿ⁺(aq) + nYᵃ⁻(aq)

<em>Where X is cation and Y is anion.</em>

Ksp = [aXⁿ⁺]ᵃ [nYᵃ⁻]ⁿ

The presence of XₐYₙ(s) produce ax moles of aXⁿ⁺ and nx moles of Yᵃ⁻. <em>Where X is the solubility of the compound.</em>

Replacing in Ksp:

Ksp = [ax]ᵃ [nx]ⁿ

Solving for x, Solubility (S) is defined as:

S = \sqrt[n+a]{\frac{Ksp}{a^{a} n^n} }

For AgCl, Ag₂CrO₄, AgBr and AgI solubilities are:

S = \sqrt[2]{\frac{1.8x10^{-10}}{1} } = 1.34x10⁻⁵M

S = \sqrt[3]{\frac{1.1x10^{-12}}{4} } = 6.50x10⁻⁵M

S = \sqrt[2]{\frac{5.4x10^{-13}}{1} } = 7.35x10⁻⁷M

S = \sqrt[2]{\frac{8.5^{-17}}{1} } = 9.22x10⁻⁹M

The lower solubility is the first compound in precipitate, thus, order of precipitation is:

<em>AgI, AgBr, AgCl and Ag₂CrO₄</em>

8 0
3 years ago
A sealed 5.00L flask contains an unknown gas at 1.05 atm and 296 K. How many moles of the unknown gas are in the flask?
xeze [42]

Moles of the unknown gas in the flask : 0.216

<h3>Further explanation</h3>

The gas equation can be written  

\large {\boxed {\bold {PV = nRT}}}

where  

P = pressure, atm  

V = volume, liter  

n = number of moles  

R = gas constant = 0.08206 L.atm / mol K  

T = temperature, Kelvin  

V=5 L

P = 1.05 atm

T = 296 K

\tt n=\dfrac{PV}{RT}\\\\n=\dfrac{1.05\times 5}{0.082\times 296}\\\\n=0.216

8 0
3 years ago
One role of enzymes in the human body
sineoko [7]

digestion

does that answer it?

8 0
3 years ago
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