When K2SO4 is separated into its ions, how is it written?
Answers
Answer: and
Explanation: Potassium is a first group metal with one valence electron and so it has +1 charge. Sulfate ion is a polyatomic ion with -2 charge. The compound potassium sulfate has two potassium ions and one sulfate ion and the below equation shows how the ions are written when the compound is dissociated into its ions.
K2SO4 -> 2K+ + SO4^-2.
This is a balanced equation.
Related Questions
A specific amount of energy is emitted when excited electrons in an atom in a sample of an element return to the ground state.This emitted energy can be used to determine theA) mass of the sample B) volume of the sample C) identity of the element D) number of moles of the element
What is the answer to this question?
Neptunium's only naturally occurring isotope, 23793np, decays by emitting one alpha particle, one beta particle, and one gamma ray. What is the new atom formed from this decay?
How many moles are present in a 24.5 gram sample of K2Cr2O7?
Answers
Answer;
Ketone bodies
Explanation;
- Ketone bodies are produced by the liver and used peripherally as an energy source when glucose is not readily available.
- They are produced from acetyl-CoA, mainly in the mitochondrial matrix of liver cells when carbohydrates are so scarce that energy must be obtained from breaking down of fatty acids.
- Tissues that can use fatty acids can generally use ketone bodies in addition to other energy sources. The exceptions are the liver and the brain.
Answers
pOH scale is used to determine the basicity of a solution
pH scale is used to determine the acidity of a solution
pH and pOH are related in the following formula
pH + pOH = 14
once pOH is known we can calculate pH
pOH = 8.7
pH = 14 - 8.7
pH = 5.3
pH of the solution is 5.3
when pH is less than 7 the solution is said to be acidic
when pH is equal to 7 then solution is neutral
when pH is more than 7 then solution is basic
the pH of the solution here is 5.3 which is less than 7, therefore solution is acidic
acidic solution with pH of 5.3
pH = 14 - pOH
pH = 14 - 8.7
pH = 5,3
This solution is acidic.
If pH<7 - acidic
If pH=7 - neutral
If pH>7 - basic
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The aspects of Dobereiner’s triads that agreed with the modern table where elements were arranged together with similar properties, and the aspects that did not match were the periodic table arranged in the rising of their atomic number.
What were Dobereiner’s triads?
Dobereiner’s triads were the arrangement of chemical elements on the basis of their similar physical and chemical properties, this was called the old periodic table. It was given by German chemist Johan Wolfgang Dobereiner.
The modern periodic table is arranged on the basis of their atomic number The elements of Dobereiner's triads were placed based on the order of increasing atomic masses.
Thus, All known elements could not be grouped into triad groups based on their properties.
To learn more about Dobereiner’s triads, refer to the below link:
#SPJ2
Answer:
In Dobereiner’s triads, elements were placed :
- According to increasing order of their atomic masses.
- Into groups which have similar chemical and physical properties.
- In each group there were three elements.
In Modern periodic table, elements are placed:
- According to increasing order of their atomic numbers.
- Into groups and these groups are assigned according to the numbers of valence electrons present in their valence shell.
Aspects of Dobereiner’s triads agreed with the modern periodic table
- Element of the same group will have similar chemical and physical properties.
Disagreement with the modern periodic table.
- Not all groups obeyed law of triads.
- On the basis of properties all known elements could not be classified into groups of triads.
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Answer:storms high winds and water pools
Explanation:
Answer: long-range forecasts.
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Answer: True
The great pacific garbage patch is a landfill of waste that is located between Hawaii and California. It is the biggest landfill in the world. This zone consists of large population of phytoplanktons and small fishes but it lacks large fishes and mammals. This zone is mainly occupied with plastics which floats over the surface of water. The eastern and western patch collectively called as the great pacific garbage patch. From the west coast the waste is discharged by the U.S and from the east coast the waste is discharged by the Japan.
Therefore, the statement pollution from many nations contributes to the Great Pacific Garbage Patch is true.
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Answer:
Explanation: The element with atomic number 20 consists 20 electrons and as atomic number is specific to an element, atomic number is of element calcium.
The nearest noble gas to calcium is argon with 18 electrons with configuartion according to afbau's rule, in which orbitals are arranged in order of increasing energies.
Thus electronic configuartion of calcium in terms of noble gas configuration is: