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3 years ago

What is true about the relationship among wavelength frequency and energy in the electromagnetic spectrum

Chemistry

2 answers:

frutty [35]3 years ago

5 0

Answer:

The lower the radiant energy, the lower the frequency and the longer the wavelength.

Explanation:

Definition of Radiant Energy: The energy transmitted by an electromagnetic wave.

Definition of Electromagnetic Spectrum: The entire range of the electromagnetic radiation, from the longest wavelengths to the shortest.

Definition of Frequency: The number of waves per second.

Definition of Wavelength: The length of a wave.

Longer wavelengths result in smaller, lower frequencies.

Shorter wavelengths result in larger, higher frequencies.

kipiarov [429]3 years ago

4 0

Energy is directly proportional to frequency and energy inversely proportional to wavelength. Wavelength is inversely proportional to frequency.

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Which of the following is an input for cellular respiration? a. CO2 b. H2O c. sunlight d. O2 Please select the best answer from

Westkost [7]

The output CO2 but the input is O2
hope it helps

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3 years ago

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Which element has 32 protons in its nucleus? phosphorus cobalt germanium sulfur

vovangra [49]

Answer:

Germanium.

Explanation:

In a neutral atom: the number of protons = the number of electrons.

Atomic number of a neutral atom = number of electrons = number of protons.

Phosphorous is an element with atomic number 15 and thus contains 15 electrons and 15 protons.

Cobalt is an element with atomic number 27 and thus contains 27 electrons and 27 protons.

Germanium is an element with atomic number 32 and thus contains 32 electrons and 32 protons.

Sulfur is an element with atomic number 16 and thus contains 16 electrons and 16 protons.

7 0

3 years ago

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roundup, an herbicide manufactured by monsanto, has the formula C3H8NO5P. How many moles of molecules are there in a 304.3 g sam

Blizzard [7]

First you find the molar mass of the formula.

3C: 36.03g + 8H:8.08g + N: 14.01g + 5O: 80g + P: 30.97g = 169.09g

Then do the mole ratio (304.3g)x(1mole/169.09g) = 1.800 moles

3 0

3 years ago

Consider the reaction of ruthenium(III) iodide with carbon dioxide and silver. RuI3 (s) 5CO (g) 3Ag (s) Ru(CO)5 (s) 3AgI (s) Det

mixer [17]

Answer:

71.6 g of Ru(CO)₅ is the maximum mass that can be formed.

The limiting reactant is Ag

Explanation:

The reaction is:

RuI₃ (s) + 5CO (g) + 3Ag (s) → Ru(CO)₅ (s) + 3AgI (s)

Firstly we determine the moles of each reactant:

169 g . 1mol /481.77g = 0.351 moles of RuI₃

58g . 1mol /28g = 2.07 moles of CO

96.2g . 1mol/ 107.87g = 0.892 moles

Certainly, the excess reactant is CO, therefore, the limiting would be Ag or RuI₃.

3 moles of Ag react to 1 mol of RuI₃

Then 0.892 moles of Ag may react to (0.892 . 1) /3 = 0.297 moles

We have 0.351 moles of iodide and we need 0.297 moles, so this is an excess. In conclussion, Silver (Ag) is the limiting.

1 mol of RuI₃ react to 3 moles of Ag

Then, 0.351 moles of RuI₃ may react to (0.351 . 3) /1 = 1.053 moles

It's ok, because we do not have enough Ag. We only have 0.892 moles and we need 1.053.

5 moles of CO react to 3 moles of Ag

Then, 2.07 moles of CO may react to (2.07 . 3) /5 = 1.242 moles of Ag.

This calculate confirms the theory.

Now, we determine the maximum mass of Ru(CO)₅

3 moles of of Ag can produce 1 mol of Ru(CO)₅

Then 0.892 moles may produce (0.892 . 1) /3 = 0.297 moles

We convert moles to mass → 0.297 mol . 241.07g /mol = 71.6 g

8 0

3 years ago

Which carbonate mineral reacts readily with cool, dilute hydrochloric acid to produce visible bubbles of carbon dioxide gas?

vazorg [7]

The carbonate mineral that reacts readily with hydrochloric acid that is at a low temperature and dilute is the calcite mineral. This reaction produces carbon dioxide which is manifested from the bubbles that is seen as the two substances are contacted.

4 0

4 years ago