If the [H+] in a solution is 1*10^-1 mol/L, what is the [OH]?
Answers
[OH⁻]=K(w)/[H⁺]
[OH⁻]=(1×10⁻¹⁴)/0.1
[OH⁻]=1×10⁻¹³M
I hope this helps. Let me know if anything is unclear.
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B.iodide-53
C.iodide-127
D.iodine-127
Answers
Explanation:
1) As per the definition of nuclide, it is the atomic spieces (the atom) characterized by the nucleons (protons and neutros).
2) To notation for a nuclide is the name of the atom followed by a hypen (without blank spaces) and the mass number.
3) The mass number is the sum of protons and neutrons.
4) From that, you can tell this about the four choices given:
A.iodine-53: is not correct because that would mean that the mass number is 53, which cannot be right as the atomic number of iodine is 53 meaning that it has 53 protons, and so that notation is not including the neutrons.
B.iodide-53: is not correct because the name of the atom is iodine, not iodide (also the mass number cannot be for the same reason explained above)
The name iodide is reserved for the ions from iodine not for the atom.
C.iodide-127: incorrect due to the name iodide, for the same reason explained above.
D.iodine-127: this is correct choice. It is the name of the isotope of the iodine with mass number 127, which means that the atom has 53 protons and 74 neutrons (53 is the atomic number and 74 is calculated from 127 - 53)
Answer:
iodine-127
Explanation:
I did a quiz and it was correct.
Answers
Answer: Pressure
Explanation:
Answers
Na2CO3 Na2O +CO2 CO2 is the answer
When a single compound breaks down into two or more compounds or elements in a chemical reaction then it is known as decomposition reaction.
The chemical symbol for sodium carbonate is .
The decomposition of sodium carbonate is:
The decomposition of sodium bicarbonate, will result in the formation of sodium oxide,
and carbon dioxide,
.
Hence, carbon dioxide, will produce with sodium oxide,
on decomposition of
.
Answers
Likes repel to one another (positive and positive), (negative and negative)
b. the reaction is producing more reactants than products.
c. the reaction is only producing products
d. the reaction is producing more products than reactants.
Answers
Answer:
a. the reaction is producing reactants and products at an equal rate. is the correct answer.
Explanation:
If a reaction is at equilibrium then the reaction rates for both the reverse and forward directions are equal.
catalyst that increases the reaction rate of a reaction, but it does not change the equilibrium state for that reaction.
Thus at the equilibrium stage, the concentration of the reactants and the product remain constant.
kinds of cells?
Answers
Answer:
stem cells
Explanation:
hope it helps