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Elan Coil [88]
3 years ago
14

Why are the discrete lines observed and not a continuous spectrum?​

Chemistry
1 answer:
miss Akunina [59]3 years ago
6 0
Atoms of individual elements emit light at only specific wavelengths, producing a line spectrum rather than the continuous spectrum of all wavelengths produced by a hot object.
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Radio stations identify themselves by their position on the radio dial such as 90.1 and 93.3. This number is based on the number
netineya [11]
<span>D. frequency is the answer</span>
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4 years ago
You are given an unknown type of clothing dye. how could you use the procedures in this lab to see if this dye is a mixture?
Arte-miy333 [17]
One separation technique to be used is the paper chromatography. This works by separating the components of the mixture through the difference of their concentrations. There is a stationary phase and the mobile phase, which flows through the stationary phase. The components travel at different rates and is usually signified by the colors. If more than one color would appear, that means that the dye is a mixture.
8 0
4 years ago
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How much time would it take to distribute one avagadro's number of wheat grains if 10^10 grains are A)1.9*10^2 years B)1.9*10^10
Makovka662 [10]

Answer:

It takes  1.9 \times 10^{6} years to distribute all the grains.

Explanation:

In one second, 10^{10} grains of wheat are distributed.

We are supposed to find the time it would take to Distribute Avogadro number of grains.

1 avogadro number = 6.022 \times 10^{23}

Number of grains distributed in 1 day = 86400 \times 10^{10}

                                                             = 8.64 \times 10^{14}

Number of grains distributed in 1 year= 8.64 \times 10^{14} \times 365

                                 = 3.1536 \times 10^{17}

Time taken = \frac{Number of grains to be distributed}{grains distributed in 1 year}

            = \frac {6.022 \times 10^{23}}{3.1536\times 10^{17}}

            = 1.9 \times 10^{6}

7 0
3 years ago
What type of sedimentary rock is gypsum?
Minchanka [31]

Answer:

Gypsum is a chemical sedimentary rock.

Explanation:

It forms when large bodies of water are rich in calcium and sulfate.

6 0
3 years ago
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A student place a 12-gram cube of ice inside a container. after six hours, the student returns to observe the contents of the co
prisoha [69]

Answer: Answer:- C. The container contains 8 grams of liquid water and no ice.

Explanation:

5 0
3 years ago
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