Calculate the molar solubility of calcium hydroxide in a solution buffered at each of the following pH's. pH 5, pH 7, pH 10
Answers
Ca(OH)₂(s) ⇄ Ca²⁺(aq) + 2 OH⁻(aq) therefore the answer is PH7
Related Questions
Which property would radon most likely have? A. It is stable. B. It is a solid. C. It is flammable. D. It is silver in color.
Which one of these is NOT a specialized area of Earth science?A. astronomy B. environmental science C. technology D. oceanograph
Compare the hydronium ion concentration of the solution having a pH of 2.0 to the hydronium ion concentration of the other solution given to the student.
The _____ agent is the substance in a redox reaction that accepts electrons.B. oxidizing C. buffering D. half-reaction
Answers
Its molecular formula : C₆H₁₂O₆
Further explanation
The empirical formula(EF) is the smallest comparison of atoms of compound forming elements.
A molecular formula(MF) is a formula that shows the number of atomic elements that make up a compound.
(EF) n = MF
its empirical formula is CH₂O
CH₂O : 12+2+16=30
Answer:
C. C6H12O6
Explanation:
For edge(:
Answers
Answers
Any type of metal may join with a non-metal, such as carbon, nitrogen, oxygen, sulfur, phosphorus, and selenium, to create ionic compounds.
What is an ionic compound ?
A chemical compound known as an ionic compound is one that contains ions bound together by the electrostatic forces known as ionic bonding. Despite having both positively and negatively charged ions, or cations and anions, the molecule is generally neutral.
In most cases, ionic compounds are created between metal and nonmetal components. For instance, the ionic compound calcium chloride is made up of the metal calcium (Ca) and the nonmetal chlorine (Cl) (CaCl2).
A nonmetal and a metal can create an ionic bond, which is the attraction between two ions with opposing charges.
Thus, metal are joined with a non-metal, such as carbon, nitrogen, oxygen, sulfur, phosphorus, and selenium, to create ionic compounds.
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Answer/Explanation:
Aluminum and oxygen
Fluorine and oxygen
Ionic compounds are formed when any type of metal is combined with a non-metal such as carbon, nitrogen, oxygen, sulfur, phosphorus, and selenium.
(any)metal + nonmetal = ionic compound
a gas that ignites a glowing splint is oxygen
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The statement is true , oxygen is a gas which ignites a glowing splint.
How does oxygen ignite a glowing splint?
A splint is a simple piece which is used in scientific laboratories. They are typically long, thin strips of wood of about 6 inches long and 1/4 inches wide. They are consumable and inexpensive. They are used for lighting burners , chemical identification of various gases .
For gases which are hard to distinguish , a glowing splint test is used for identification of gases. . These tests are useful for identifying whether the gas is oxidizing,flammable or chemically inert.Oxygen is one of the gases which can be identified using the splinter test as it is combustible.
For the test, the splint is lit and is allowed to burn for a fraction of seconds and then blown out as the tip is still hot it is introduced into the jar containing the oxygen gas and thus re-igniting the splinter.
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Answers
Answer: physical change
saturated solution
supersaturated solution
A.
The amount of solute dissolved is less that the maximum amount the solution can hold.
B.
The amount of solute dissolved is the maximum amount the solution can hold.
C.
The amount of solute dissolved is more than the usual maximum amount.
Answers
saturated solution is The amount of solute dissolved is the maximum amount the solution can hold.
supersaturated solution is The amount of solute dissolved is more than the usual maximum amount.