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Gre4nikov [31]
3 years ago
14

Describe the development of the modern periodic table

Chemistry
1 answer:
Simora [160]3 years ago
8 0
There had been new discoveries of chemicals that have been added to the periodic table in recent years
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A dachshund walked 20 meters in 30 minutes. Calculate the speed. Provide your
steposvetlana [31]
40 mph becaus 30minute x2 is an hour which turns 20 into 40
7 0
3 years ago
Match the process in electricity generation to the type of energy conversion that occurs (processes are not in correct order)
MAXImum [283]

Answer

The matching is numbered and represented in red arrowsi n the diagram below:

Explanation

In a steam turbine electricity generation, the mechanical energy in form of pressure present in steam is extracted and converted into kinetic energy by allowing the steam to flow through the stationary blades. This kinetic energy is transmitted to the moving blades connected to the alternator of a steam turbine generator.

The matching of the process is shown below:

3 0
1 year ago
2C4H10+1302 -> 8CO2 + 10H₂O
kondaur [170]

Answer:

.137 moles

Explanation:

need to know the molar mass of water which is 18.01528 g/mol

2.46 g of H₂O divided 18.01528 g/mol molar mass H₂O = moles of H₂O

2.46 divided by 18.01528 =

.137 moles

C4H10 is butane

butane is commonly used in cigarette lighters

2C4H10+1302 -> 8CO2 + 10H₂O is the burning of butane

burning butane with oxygen makes carbon dioxide and water

vsumhcwagovau

7 0
2 years ago
Four samples of gas each exert 675 mm Hg in separate 3.5 L containers. What pressure will they exert if they are all placed in a
DedPeter [7]
The pressure that  will  be   exerted if  four sample  of gas are placed in a single  3.5 container  is calculated as below

if  each gas occupies 675  mmhg

what about  4 gases in the sample
by cross  multiplication

= 675 mm hg x 4/1 = 2.7  x10^3mmhg (answer D)
3 0
3 years ago
Is this an aromatic hydrocarbon? Why or why not?
swat32
The correct answer is D

3 0
3 years ago
Read 2 more answers
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