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Oxana [17]
3 years ago
5

Solid mercury (II) oxide produces liquid mercury and oxygen gas

Chemistry
1 answer:
Nina [5.8K]3 years ago
7 0

Mercury(II) oxide, a red solid, decomposes when heated to produce mercury and oxygen gas. Mercury(II) oxide is a red solid. When it is heated, it decomposes into mercury metal and oxygen gas. A reaction is also considered to be a decomposition reaction even when one or more of the products are still compounds.

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Sometimes the color of an animal closely resembles the color of its environment. Which of the following is the most likely reaso
Deffense [45]

Answer:

The answer is D

Explanation:

Animals add color to their environment so a mate can see how creative the animal is.

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3 years ago
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Consider the words or phrases below and drop them in the bucket that you would most associate with the word or phrase in the the
Dimas [21]

Answer:

1) non equilibrium

mass movement

unsaturated solution

2)equilibrium phase change

Heat of vaporization

condensation

heat of fusion

normal boiling point

vapor pressure

3) equilibrium reaction

saturated solution

Ksp

solubility

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Explanation:

Nonequilibrium processes are those processes that are irreversible. They often lead to an increase in entropy of the system.

In chemical systems, a state of equilibrium is said to have been attained when the rate of the forward process equals the rate of the reverse process. This is true for both chemical reaction and phase changes. A state of equilibrium connotes a constancy in physical properties of a system over a period of time.

7 0
3 years ago
_______ is the application of scientific knowledge to solve problems or create new products.
astraxan [27]
Having resources? i guess... 
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3 0
3 years ago
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An element has ccp packing with a face-centered cubic unit cell. its density is 8920 kg/m3 and the unit cell volume is 4.72 x 10
ziro4ka [17]
<span>63.4 g/mol
   First, let's determine how many atoms per unit cell in face-centered cubic. There is 8 corners, each of which has 1 atom, and each of those atoms is shared between 8 other unit cells. So 8*1/8 = 1 atom per unit cell. Additionally, there are 6 faces, each of which has 1 atom that's shared between 2 unit cells. So 6*1/2 = 3 atoms per unit cell. So each unit cell has the mass of 1+3 = 4 atoms. Since there is 1000 liters per cubic meter, the mass per liter is 8920 kg/1000 = 8.920 kg/L. Now the mass per unit cell is 8920 g * 4.72x10^-26 = 4.21024x10^-22 g per unit cell. The mass per atom is 4.21024x10^-22 g / 4 = 1.05256x10^-22 g/atom, Finally, multiply by Avogadro's number, getting 1.05256x10^-22 g/atom * 6.0221409x10^23 atom/mol = 63.38664625704 g/mol.
   Rounding to 3 significant digits gives 63.4 g/mol.</span>
5 0
3 years ago
Which of the following statements is not true of the phases of a given substance ?
velikii [3]

The particles of gases have more kinetic energy than liquids and gases.

Explanation:

  • We know that in case of solids the molecules are very tightly packed , in case of liquids the molecules are loosely packed and lastly in case of gases the molecules are very loosely packed.
  • As we known in case of solids energy present is very less and in case of liquids energy present is more than solids and lastly in case of gases the energy present is most.
  • Gases have more kinetic energy because the particles present in gaseous form can move easily without any obstruction.
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3 years ago
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