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Alex73 [517]
3 years ago
3

Which sequence shows the different types of electromagnetic waves arranged in an increasing order of their frequency?

Chemistry
2 answers:
Lelu [443]3 years ago
8 0
<span>The electromagnetic spectrum is a continuum of all electromagnetic waves arranged according to frequency and wavelength. The sun, earth, and other bodies radiate electromagnetic energy of varying wavelengths.</span>

Tresset [83]3 years ago
3 0
<h2>Answer:</h2>

The correct answer is the option A which is radio waves, microwaves, visible light, x-rays.

Explanation:

  • Electromagnetic spectrum is the graph describing the ranges of frequencies of different electromagnetic waves.
  • As frequency and wavelength are inversely proportional.
  • The waves with long wavelength have low frequency and waves with short wavelength have high frequency.
  • Rdiowaves have long wave length and low frequency and microwaves have frequency more than radio waves and visible waves have high but x rays have of frequency of all given in list.
  • Hence on the bases of frequency:
  • Radio waves ≤ Micro waves ≤ Visible waves ≤ x-rays
  • It can be seen in given electromagnetic spectrum.

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How many meters did the bus travel in 4.5 minutes
sertanlavr [38]

Answer:

Using the graph, we can see that after 4.5 minutes, the bus traveled 4500 meters. Find 4.5 on the x axis, and then see what y value it corresponds to.

Let me know if this helps!

3 0
3 years ago
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A rock has a volume of 625 mL and a mass of 1050 g. What is the density?
Pavel [41]

Answer: 6,275

Explanation:

625+1050=6,257

7 0
4 years ago
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Consider the combustion reaction for octane (C8H18), which is a primary component of gasoline.
DIA [1.3K]

Answer:

1.16 moles CO₂

Explanation:

To find the moles of CO₂, you need to (1) convert grams C₈H₁₈ to moles (via the molar mass) and then (2) convert moles C₈H₁₈ to moles CO₂ (via the mole-to-mole ratio from equation coefficients). It is important that the conversions/ratios are arranged in a way that allows for the cancellation of units. The final answer should have 3 significant figures like the given value.

Molar Mass (C₈H₁₈): 8(12.011 g/mol) + 18(1.008 g/mol)

Molar Mass (C₈H₁₈): 114.232 g/mol

2 C₈H₁₈ + 25 O₂ -----> 16 CO₂ + 18 H₂O
^                                    ^

16.6 g C₈H₁₈            1 mole            16 moles CO₂          
--------------------  x  -----------------  x  -------------------------  = 1.16 moles CO₂  
                              114.232 g          2 moles C₈H₁₈          

3 0
2 years ago
Copper has two naturally occurring isotopes. Cu−63 has a mass of 62.939 amu and relative abundance of 69.17%.
fiasKO [112]
The answer is 64.907 amu.

The atomic mass of an element is the average of the atomic masses of its isotopes. The relative abundance of isotopes must be taken into consideration, therefore:
atomic mass of copper = atomic mass of isotope 1 * abundance 1 + atomic mass of isotope 2 * abundance 2

We know:
atomic mass of copper = 63.546 amu
The atomic mass of isotope 1 is: 62.939 amu
The abundance of isotope 1 is: 69.17% = 0.6917
The atomic mass of isotope 1 is: x
The abundance of isotope 2: 100% - 69.17% = 30.83% = 0.3083

Thus:
63.546 amu = 62.939 amu * 0.6917 + x * 0.3083
63.546 <span>amu = 43.535 amu + 0.3083x
</span>⇒ 63.546 amu - 43.535 amu = 0.3083x
⇒ 20.011 amu = 0.3083x
   ⇒ x = 20.011 amu ÷ 0.3083 = 64.907 amu
7 0
4 years ago
The charge to mass ratio of proton is 9.57×104C/gm determine the mass of proton​
Whitepunk [10]

mabye ask your teacher Explanation:

6 0
3 years ago
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