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Anit [1.1K]
3 years ago
8

Fill in the blanks. The celestial bodies in space move about in predictable paths called

Chemistry
2 answers:
ella [17]3 years ago
7 0

Answer:

Magnetic fields, revolve, asteroids

butalik [34]3 years ago
5 0
The celestial bodies in space move about in predictable paths called ORBITS. As a result, a planet is able to REVOLVE around the Sun. Other objects in the solar system, also orbit the Sun. These objects include ASTEROIDS and comets.
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A student measures the mass of a clean, dry flask and stopper is measured using a laboratory balance. The mass of the empty stop
Jobisdone [24]

Answer:

Volume of flask = 29.134 cm³

Explanation:

Mass of water = mass of filled stoppered flask - mass of empty stoppered flask.

Mass of water = 65.858 - 36.724 = 29.134 g

Density of water = 1 g/cm³

Volume = mass/ density

Volumeof water = 29.134 g/ 1g/cm³ = 29.134cm³

Therefore, volume of flask = 29.134 cm³

7 0
3 years ago
Read 2 more answers
What is a characteristic of branched chained alkanes?
olga2289 [7]

C) They have more than two carbons that are bonded to only one other carbon

4 0
3 years ago
Read 2 more answers
If the statement is true, select True. If it is false, select False.
sergiy2304 [10]

Answer:

True

Explanation:

Yes this statement is true.

In a physical change, some of the physical properties of the substance may be altered and the chemical composition remains the same.

6 0
3 years ago
Chlorination of alkanes can produce a multitude of products. Determine the number of monochlorinated and dichlorinated products
ArbitrLikvidat [17]

Answer:

monochlorinated products: 4

dichlorinated products: 12

Explanation:

Chlorination of alkanes is a reaction that takes place when the chlorine is in presence of light. This actually decomposes the chlorine, and one atom of Chlorine substracts an hydrogen from the alkane. Now, this hydrogen substracted comes usually from the most substitued carbon, because it's more stable (A tertiary carbon is more stable than a secondary carbon, and this more stable than primary).

When this happens, the other chlorine atom, goes as electrophyle in that carbon and formed the chlorinated product. Now, although a tertiary carbon is more stable, we can still have (in minor quantities) chlorinated products that comes from a secondary and primary carbon. The first picture shows the general mechanism of the chlorination, and the possible products for a monochlorinated.

The second picture shows the possible dichlorinated products, which are in higher quantities than the monochlorinated basicallu because of the variety of positions the chlorine can be. So, second picture shows all the products.

6 0
4 years ago
Answer Quick
kow [346]

Answer:

20.9%

Explanation:

  • The percentage by mass of solution is given by dividing the mass of solute in grams by the mass of solution in grams then multiplying it by 100%.

% Mass of solution = mass of solute/mass of solution × 100%

                               = (27.0 g/ 129.0 g) × 100%

                               = 20.93%

                               = 20.9%

7 0
3 years ago
Read 2 more answers
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