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oee [108]
3 years ago
11

Back page anwsers of adobe sisters recap sheet

Chemistry
1 answer:
spayn [35]3 years ago
4 0

Answer:

I'm sorry, you didn't post the pictures.

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What is units we used for measuring the radon gas?
lisabon 2012 [21]

Answer:

Bq/m3 (becquerels per cubic meter) or pCi/l (picocuries per litre)

Explanation:

The unit of the International System of Units identified to measure radioactive activity is Becquerelio (Bq) and equivalent to one decay per second.

The Curio (Ci) is also a radioactivity unit, which is still being used in some countries. It owes its name to chemists and chemists Pierre and Marie Curie.

It represents the amount of material in which 3.7 × 1010 atoms per second, or 3.7 × 1010 nuclear decays per second, which is roughly the activity of 1 g of 226Ra (isotope of the chemical chemical element).

The equivalence between the two is:

1Ci= 3,7 × 1010Bq

The specific radioactive activity of a radioactive gas such as radon gas is measured per unit volume and measured in Bq/m3 or pCi/l.

In this case the equivalence is:

1pCi/l= 37Bq/m3

6 0
4 years ago
A .332 mold sample of gas at a constant pressure and temperature has a volume of 150.0mL. If the volume of the gas is decreased
Vikentia [17]

Answer:

0.111 mol

Explanation:

We can solve this problem by using<em> Avogadro's law</em>, which states that at constant pressure and temperature:

  • V₁n₂=V₂n₁

Where in this case:

  • V₁ = 150.0 mL
  • n₂ = ?
  • V₂ = 50.0 mL
  • n₁ = 0.332 mol

We <u>input the data given by the problem</u>:

  • 150.0 mL * n₂ = 50.0 mL * 0.332 mol

And <u>solve for n₂</u>:

  • n₂ = 0.111 mol
6 0
3 years ago
In the presence of excess oxygen, methane gas burns in a constant-pressure system to yield carbon dioxide and water:
Marina CMI [18]

Explanation:

in the presence of excess oxygen methane burns to prduce carbon (iv) oxide and water ....this is called complete combustion...

6 0
3 years ago
what the type of solid materials are typically hard, have high melting pionts and poor electrical conductivities​
Virty [35]

Answer:

Ionic solids

Explanation: Ionic solids—Made up of positive and negative ions and held together by electrostatic attractions. They're characterized by very high melting points and brittleness and are poor conductors in the solid state. An example of an ionic solid is table salt, NaCl.

7 0
3 years ago
Read 2 more answers
Which explanation is true about what happens to a ray of light when it strikes a mirror?
patriot [66]
For this, the correct option would be (D)
8 0
4 years ago
Read 2 more answers
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