Write a chemical equation for the following decomposition reaction.Nickel(II) hydroxide(s) decomposes to produce nickel(II) oxide(s) and water.

Answers

Answer 1

Answer: the chemical equation will be Ni(OH)2(s)------>heat---> NiO(s) + H2O(g)
we know that the heat supplied to decompose the compound.In the result the product H2O is assumed to be in the vapor state so that is gas.

hope it helps

Answer 2

Answer:

Final answer:

The decomposition of Nickel(II) hydroxide produces Nickel(II) oxide and water. The chemical equation is: Ni(OH)2 (s) → NiO (s) + H2O (l).

Explanation:

The decomposition reaction of Nickel(II) hydroxide into Nickel(II) oxide and water can be written as follows: Ni(OH)2 (s) → NiO (s) + H2O (l) . In this reaction, solid Nickel(II) hydroxide decomposes into solid Nickel(II) oxide and liquid water. It’s important to remember that in these reactions, a single, complex reactant breaks down into multiple, simpler products.

Learn more about Decomposition Reaction here:

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True or false Diprotic acids lose both hydrogens at the same time

Answers

Best Answr : Falsee im sureee .

Which best describes what happens when a person sees an orange T-shirt?A.
The T-shirt radiates all colors of light except orange to human eyes.

B.
The T-shirt absorbs orange light from human eyes.

C.
Human eyes reflect orange light back to the T-shirt.

D.
Orange light reflected from the T-shirt enters human eyes.

Answers

The answer is D.

"Orange light reflected from the T-shirt enters human eyes."

In which laboratory process could a student use 0.10 M NaOH(aq) to determine the concentration of an aqueous solution of HBr?(1) chromatography
(2) decomposition of the solute
(3) evaporation of the solvent
(4) titration

Answers

Answer:

4) titration

Explanation:

Titration is a standard process used in a laboratory to determine the concentration of an unknown analyte. A titrant of known concentration is gradually added to a known volume of the analyte in the presence of a suitable indicator. The end of the titration is marked by a color change of the analyte.

The given example is that of an acid(HBr) - base(NaOH) titration which can be represented by the following equation:

NaOH + HBr → NaBr + H2O

Thus 1 mole of acid gets neutralized by 1 mole of the base to form 1 mole of the salt (NaBr)

Let M1 and V1 are the molarity and volume of the base (NaOH). Here, the molarity of NaOH is known = M1 = 0.10 M and the volume, V1 corresponds to the end point in the titration.

M2 and V2 are the molarity and volume of HBr. Here, V2 is known whereas M2 needs to be determined.

Based on the reaction stoichiometry:

moles of NaOH = moles of HBr

$M1*V1=M2*V2\n\nTherefore,\n\nM2 = (M1*V1)/(V2)$

(4) titration, the process of using an aqueous solution of known concentration to determine the concentration of another solution of unknown concentration, is your answer.

Elements have been discovered with up to how many energy levels

Answers

20 because each row has 20 columns

Your boss asks you to design a room that can be as soundproof as possible and provides you with threesamples of material. The only information on each sample's label is the material's coefficient of absorption.
The coefficient of absorption listed on Sample A is 30%, on Sample B is 47%, and on Sample C is 62%.
When your boss asks for your choice and the reasoning behind it, what would you tell him?
A. Sample A would be best, because the percentage of the energy in an incident wave that remains in a reflected wave from this
material is the smallest.
B. Sample C would be best, because the percentage of the energy in an incident wave that remains in a reflected wave from this
material is the smallest.
C. Sample C would be best, because the percentage of the energy in an incident wave that remains in a reflected wave from this
material is the largest.
D. Sample A would be best, because the percentage of the energy in an incident wave that remains in a reflected wave from this
material is the largest.

Answers

Answer: The correct answer is Option C.

Explanation: For a room to be soundproof, there should be minimum reflection of the sound waves and maximum absorption of the waves.

According to the question, the coefficient of absorption is maximum for Sample C. So, this sample will reflect minimum waves and will absorb maximum waves.

Hence, this sample is the best for making the room soundproof. Hence, the correct answer is Option C.

The right answer for the question that is being asked and shown above is that: "B. Sample C would be best, because the percentage of the energy in an incident wave that remains in a reflected wave from this material is the smallest."

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