Answer:
d. None of the above
Explanation:
Desalination is the process of removing some mineral salts from water or soil thereby making a water more fresh and the soil less filled with mineral salts. Salty water can be desalinated by doing away with their salts leaving behind a water that would be more suitable for certain needs. Desalinated water can be used domestically, industrially and also for agriculture.
Soils that have been desalinized can be more suitable to plant some special types of crops that would not thrive where some certain mineral salts occur in excess.
Desalination is an expensive process.
Water reclamation is the reuse of waste to serve new needs. It involves recycling of waste or polluted water into a more fresher water. Reclaimed water can also be used for agricultural, domestic and industrial purposes.
Desalination is a method that can be used to reclaim water. It is also an expensive process.
Desalination recharges aquifers: Desalination is an artifical process and would not add back to the ground water storage.
Desalination provides water suitable for drinking: water reclamation also provides suitable water for drinking.
Answer: c. Desalination provides water suitable for drinking.
Explanation:
Desalination is a process of removal of salts and other minerals from sea water or from any other source of saline water. This is done to make water fit for the purpose of drinking.
Water reclamation is a process of removal of contaminants and wastes from waste water so that it can be used again for agricultural irrigation, sanitation. But such water cannot be used for the purpose of drinking as the quality of water cannot be maintained as a potable (useful for drinking) water should be by reclamation process.
7. A figure skater skating across ice, who grabs another skater and brings him along the ice with her, is an example of what type of collision? A. Inelastic collision B. Elastic collision C. Mass collision D. Parallel collision
Answer:
The type of collision is A. Inelastic collision.
Explanation:
The macroscopic collisions are generally inelastic and do not conserve the kinetic energy, although of course the total energy is conserved. The inelastic collision is one in which the objects that collide remain together after the collision.
So, a figure skater skating across ice, who grabs another skater and brings him along the ice with her is a clear example of inelastic collision.
Answer:
inelastic collision
Explanation:
Volcanoes release several gases during eruptions. Which of these gases has been shown to cause significant cooling of the climate for one or more years after an eruption?
A. sulfur dioxide
B. carbon dioxide
C. hydrogen fluoride
D. water vapor
Answer:
A. sulfur dioxide
Explanation:
The volcanoes are able to influence the global climate both on the short term and on the long term. The end result can be either cooling off of the climate, or warming up of it, depending on what type of gasses are the volcanoes going to release in the atmosphere, as well as how much of them. The sulfur dioxide is a gas that is released by the volcanoes that causes cooling off of the climate. This gas is going through conversion and becomes sulfuric acid, and it is able to restrict the amount of sunlight reaching the surface of the Earth, as well as increasing the reflective properties of the atmosphere, resulting in a few years of significant cooling of the climate.
Which of the following statements about tolerance rang is true?
Answer:
Option A
Explanation:
Hi Jacobpalacios! How are u?
Here are the justifications of my choice:
A. TRUE. Organisms have different ranges of tolerance depending on the type of organism and the species (microorganisms, fungi, plants, animals or even humans have different ranges of tolerance, for example at temperature). In other words, different types of organisms have different tolerance ranges for the same factor.
B. FALSE. The tolerance range represents the number of individuals in a population that lives under a certain range of a given factor (no the ecosystem in general). For example, we can know the number of individuals who tolerate a certain concentration of oxygen.
C. FALSE. The tolerance range is affected by abiotic factors (environmental conditions), not biotics. For example, temperature, oxygen, acidity of the environment, etc.
D. FALSE. Most individuals need a minimum percentage of water for their organisms or organelles to function. Therefore, the availability of water will be a factor that impacts the tolerance range of an organism.
I hope I've been helpful!
Regards!
Which of the following accurately pairs the part of an atom to its charge? A. Electron—no charge B. Proton—no charge C. Neutron—positive charge D. Electron—negative charge
Answer:
D: Electron - Negative Charge
Explanation:
Protons have a positive charge, (pro = +)
Neutrons have a negative charge, (neutral = 0
Electrons have a negative charge.
An element is determent by the number of protons in the atom, the Isotope of an element is determined by the number of neutrons, and the charge of an atom is determined by its electrons, which is equal to the number of protons.
Every electron atom has a negative charge. An Electron can move from one atom to another while proton can't.
What are Electrons?Electrons are the part of atom and carries -1 charge. Electrons are found at the border or boundary of an atom. The Electrons move in the space outside the nucleus like a cloud.
Hence option D Electron has a negative charge is correct.
Learn more about Electrons here.
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What is a conjugate acid?
The conjugate acid is formed when the base gains an [tex]H^+[/tex]. Hence, option D is correct.
What are conjugate acid and base?An acid and a base which differ only by the presence or absence of a proton are called a conjugate acid-base pair.
In the Brønsted–Lowry definition of acids and bases, a conjugate acid-base pair consists of two substances that differ only by the presence of a proton (H⁺).
A conjugate acid is formed when a proton is added to a base, and a conjugate base is formed when a proton is removed from an acid.
Hence, option D is correct.
Learn more about the conjugate acid here:
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Due to the small and highly electronegative nature of fluorine, the oxyacids of the this element are much less common and less stable than those of the other halogens. Bonding theory, however, does allow one to propose structures for these acids and use formal charges for the evaluation of these structures. For a molecule of fluorous acid, the atoms are arranged as HOFO. (Note: In this oxyacid, the placement of fluorine is an exception to the rule of putting the more electronegative atom in a terminal position.) What is the formal charge on each of the atoms? Enter the formal charges in the same order as the atoms are listed. Express your answers as charges separated by comma. For example, a positive one charge would be written as +1.
Answer:
Formal Charge for H, O, F, O = 0,0,1,-1
While an octet of electrons is attained by the oxygen and fluorine atoms in this structure and the formal charges add to zero, having to assign a formal charge of +1 to such an electronegative atom as fluorine may indicate that such a structure is not likely to occur. In fact, fluorine commonly only forms one oxyacid, HOF.
Explanation:
In the molecule of fluorous acid (HOFO), the formal charges on each atom are: oxygen (-1), oxygen (-1), fluorine (+1), and hydrogen (0).
Explanation:In the molecule of fluorous acid (HOFO), the formal charges on each atom can be calculated using the Lewis structure and the rules for assigning formal charges. Oxygen typically has 6 valence electrons, and in this structure, both oxygen atoms have 7 electrons. Therefore, each oxygen atom in fluorous acid has a formal charge of -1. The fluorine atom, being more electronegative than oxygen, attracts electrons more strongly and has a formal charge of +1. So, the formal charges on each of the atoms in fluorous acid are: oxygen (-1), oxygen (-1), fluorine (+1), and hydrogen (0).