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dusya [7]
2 years ago
6

Polonium crystallizes in a simple cubic unit cell with an edge length of 3.36 Å.

Chemistry
1 answer:
Diano4ka-milaya [45]2 years ago
8 0

a. The unit cell is the smallest group of atom which have overall symmetry of a crystal, and from which is the entire letters can be buled built up by repetition in 3 dimensions.

b. The volume(v) of the unit cell is equal to the cell edge length (a)cubed.

c. density of polonium is 9.32g/cm3.

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Iupac names of the following ​
Nadusha1986 [10]
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2 years ago
How many gallons of a 60​% antifreeze solution must be mixed with 70 gallons of 25​% antifreeze to get a mixture that is 50​% ​a
Neporo4naja [7]

Answer:

The answer to your question is 175 gallons

Explanation:

Data

60% antifreeze solution  volume = ? = x

25% antifreeze solution   volume = 25%

Final concentration 50%

Process

              0.6x + 0.25(70) = 0.5(70 + x)

Simplification

              0.6x + 17.5 = 35 + 0.5x

              0.6x - 0.5x = 35 - 17.5

                          0.1x = 17.5

                              x = 17.5/0.1

Result

                              x = 175 gallons

6 0
3 years ago
Provide a brief theory which explains the application of polymerization reactions to everyday life.
nikdorinn [45]

Explanation:

Polymers are extensively used innovative materials, which are originated nearly in each material used in our daily life. Polymers, a big class of resources, comprise of many small particles called monomers that are related composed to form long shackles and are used in a lot of products and goods that we use in daily life. The polymer named Polyethylene is used in plastic bags and film wraps. Polyvinyl Chloride  ( PVC) is castoff in siding, pipes, flooring determinations. The synthetic polymer Polystyrene is used in cabinets, petri dishes, CD cases, plastic cutlery and in packaging. Polyvinyl acetate is used in adhesives and latex paints.

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3 years ago
Why is the Ring of Fire a very geologically active part of the earth?
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Answer:

c

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5 0
2 years ago
1.505 times 10^23 Na atoms
Svet_ta [14]

Explanation:

Given:

Number of atoms = 1.505 x 10²³

Let us solve for the number of moles and mass of this atom of sodium.

A mole of a substance is the amount of that substance that contains the avogadro's number of particles.

     1 mole of Na = 6.02 x 10²³ atoms

Number of moles of Na  = \frac{1.505 x 10^{23} }{6.02 x 10^{23} }   = 0.25moles

Mass of Na = number of moles x molar mass

Molar mass of Na = 23g/mole

 Mass of Na = 0.25 x 23 = 5.75g

learn more:

Number of moles brainly.com/question/1841136

#learnwithBrainly

4 0
2 years ago
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