How can biomass energy use improve water quality?

Answers

Answer 1

Answer: The use of biomass energy can improve water quality by the decrease in soil erosion and sedimentation. When we use energy from biomass, we certainly need biomass and we get most of this biomass from the wastes of crops therefore there is a need of planting more crops. By planting crops, soil erosion and sedimentation is decreased because plants hold the soil and prevent it from washing away with water.

Answer 2

Answer:

In an ecosystem, the use of biomass energy can improve water quality by the decrease in soil erosion and sedimentation.

Ecosystem is defined as a system which consists of all living organisms and the physical components with which the living beings interact. The abiotic and biotic components are linked to each other through nutrient cycles and flow of energy.

Energy enters the system through the process of photosynthesis .Animals play an important role in transfer of energy as they feed on each other.As a result of this transfer of matter and energy takes place through the system .Living organisms also influence the quantity of biomass present.By decomposition of dead plants and animals by microbes nutrients are released back in to the soil.

Thus,to improve water quality by the decrease in soil erosion and sedimentation biomass energy is used.

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How many electrons are in Br-? A) 4 B) 7 C) 34 D) 36 E) none of the above

Answers

The number of electrons in Br- (bromide ion) is option B) 7.

Bromine (Br) has an atomic number of 35, which means it normally has 35 electrons. However, since the bromide ion (Br-) has a negative charge, it has gained one extra electron, bringing the total number of electrons to 35 + 1 = 36.

So, the correct answer is not listed among the options given

16.H2O (water) and NaCl (salt) are _________ that are in salt water, which is a(n) __________. Water and salt contain the ____________ hydrogen, oxygen, sodium, and chlorine. Compounds; mixture; elements
Mixture; compounds; elements
Element; compounds; mixture
Compound; elements; compounds

12.The number of _____ determines which element it is.

electrons
protons
positrons
neutrons

Answers

#1...Mixture; compounds; elements
#2...Protons

Water has a higher boiling point than expected because A. there is so much water vapor in the atmosphere. B. water molecules are not very massive. C. hydrogen and oxygen form single covalent bonds. D. of the strong attractions between polar water molecules

Answers

The correct answer is C. Water has a higher boiling point than expected because hydrogen and oxygen form single covalent bonds. Molecules of water is bound together by strong attractions which needs high energy to break resulting to a higher boiling point of water than most substances.

Final answer:

Water has a higher boiling point than expected because D. of the strong attraction between polar water molecules.

Explanation:

The higher boiling point of water is due to the strong attraction between polar water molecules. Water molecules are polar because of the unequal distribution of electron density between the oxygen and hydrogen atoms, resulting in a slightly positive charge on the hydrogen atoms and a slightly negative charge on the oxygen atom.

Thus, these partial charges create attractive forces called hydrogen bonds between neighboring water molecules, making it difficult to separate the molecules and requiring more heat energy to overcome these attractive forces and reach the boiling point.

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Given the incomplete equation for the combustion of ethane:2C2H6 + 7O2==>4CO2 + 6 ____
What is the formula of the missing product?
(1) CH3OH (3) H2O
(2) HCOOH (4) H2O2

Answers

Answer : The correct option is, (4) $(H_2O)$

Explanation :

Combustion reaction : It is a reaction in which a hydrocarbon react with the oxygen gas to produces carbon dioxide as water as a products.

The given incomplete equation are :

$2C_2H_6+7O_2\rightarrow 4CO_2+6_$

In this equation, we see that a hydrocarbon and oxygen gas are present on reactant side and carbon dioxide are present on product side but water molecules are missing on the product side. So, we are adding water $(H_2O)$ on missing side.

The given complete equation will be :

$2C_2H_6+7O_2\rightarrow 4CO_2+6H_2O$

Therefore, the formula missing on product is, $(H_2O)$

The combustion of ethane will consume oxygen and create carbon dioxide and water. That is a general rule for most alkane, olefin and alkyne. So the missing product is H2O.

Which of the following is a product formed when NaCl decomposes? A. Na2 B. Nac2 C. cl2

Answers

The measure of the number of atoms in one element that will combine with an atom of another element is A. atomic charge.
B. molecular number.
C. valence.
D. atomic number

Answers

The correct answer is:

C. valence.

Explanation:

The valence or valency of an element is a stratagem of its connecting power with other atoms when it makes chemical compounds or molecules.

A valence electron is an outer shell electron that is connected with an atom, and that can compete in the formation of a chemical bond if the outer shell is not closed; in a single covalent bond, both atoms in the bond provide one valence electron in order to form a shared pair

Answer:

C. valence

Explanation:

The valence or valency of an element is a stratagem of its connecting power with other atoms when it makes chemical compounds or molecules.

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