Which one of the following is NOT the unit of wave number:

m-1
cm-1
mm-1
cm

Answers

Answer 1

Answer:

e

Explanation:

Answer 2

cm is not the unit of wave number out of the following.

What is a wave number?

Definition: Total number of wave cycles present in a unit distance is termed a wave number.

Wave number is always a reciprocal of the unit of distance.Wave number is denoted by the letter 'k'.The formula for wave number is  2π/λ where λ is the wavelength. Since wave number is always reciprocal, cm is not the unit for a wave number. The higher the wave number, the higher the frequency and energy.

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Related Questions

13. Find the total number of atoms present in the following molecules. a. 5 H₂O b. Zn Cl₂​

Answers

Answer:

A= 15 atoms B= 3

Explanation:

5 x 2 + 5 x 1

3 + 2 x 1

Someone please answer this ty <3

Answers

Answer: Sound

Explanation:

The hydrophobic effect is the primary driving force for protein folding because: Question 4 options: a) A folded protein is able to form the most hydrogen bonds b) An unfolded protein maximizes the entropy of a biological system c) A folded protein maximizes the entropy of water

Answers

A) folded protein happens because this is the most stable conformation that has the most number of internal hydrogen bonds , which result in hydrophobic functional groups being on the outer sides of the protein and causing the hydrophobic effect

Hehe someone help I have put down heat but I think there is another

Answers

Answer:

chemical potential enery

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In which way are the scientific method and the design process the same?

Answers

Answer: A lot of the steps are the same.

Explanation:

Scientific Method

State your question

Do background research

Formulate your hypothesis, identify variables

Design experiment, establish procedure

Test your hypothesis by doing an experiment

Analyze your results and draw conclusions

Communicate results

Steps of The Scientific Method

Engineering Design Process

Define the problem

Do background research

Specify requirements

Create alternative solutions, choose the best one and develop it

Build a prototype

Test and redesign as necessary

Communicate results

Steps of The Engineering Design Process

What mass of oxygen is needed to complete the combustion of 8.80 x 10^-3 g of methane?

Answers

Explanation:

The chemical reaction that describes the combustion of methane is

[tex]\text{CH}_4 + 2\text{O}_2 \rightarrow \text{CO}_2 + 2\text{H}_2\text{O}[/tex]

We need to convert the mass of methane to moles:

[tex]0.00880\:\text{g} × \dfrac{1\:\text{mol CH}_4}{16.04\:\text{g}}[/tex]

[tex]= 5.49×10^{-4}\:\text{mol CH}_4[/tex]

Now use the molar ratios to determine the amount of oxygen used during the combustion:

[tex]5.49×10^{-4}\:\text{mol CH}_4×\left(\dfrac{2\:\text{mol O}_2}{1\:\text{mol CH}_4}\right)[/tex]

[tex] = 0.00110\:\text{mol O}_2[/tex]

Converting this to grams, we find that the mass of oxygen is

[tex]0.00110\:\text{mol O}_2×\left(\dfrac{15.999\:\text{g O}_2}{1\:\text{mol O}_2}\right)[/tex]

[tex] = 0.0176\:\text{g O}_2[/tex]

What other methods can be used to identify the components in drugs if you didn't have melting point data

Answers

Answer:

ósea un abrazo

Explanation:

....m.......

what is kinetic energy ? ​

Answers

Answer:

Energy which a body possesses by virtue of being in motion.

If the density of carbon tetrachloride is 0.893 g/mL, and a sample has a volume of 9.29 mL, what is the mass?

Answers

Answer:

8.3g

Explanation:

d=m/v

m=d*v

m=0.893*9.29

m=8.3g

If the density of carbon tetrachloride is 0.893 g/mL. The mass of the compound will be 8.3 g.

What is mass?

Mass is the quantity of matter. The mass can be calculated by multiplying density with the volume. The evaluation of how close something is packed. As the mass per unit volume, it has that definition.

Volume is the space occupied by the object. The liquid that weighs heavier is denser if you weigh two liquids with similar volumes or amounts. A substance that is less dense than water will float if it is gently introduced to the water's surface.

So the formula will be d = m / v

m = d x v

The density of carbon tetrachloride is 0.893 g/m

The volume of carbon tetrachloride is 9.29 mL

What the mass is?

Putting the value in the formula

m = 0.893  x 9.29 = 8.3g

Thus, the mass of the compound will be 8.3 g.

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matter can be classified as a ____ or a ____​

Answers

Answer:

matter can be classified as a substance or a element

Bailey swam 0.86 km, biked
for 22.4 km, and ran 4.25 km.
How many meters did she
travel total?

A: 2,751
B: 7,350
C: 21,428
D: 27,510

Answers

Answer:

2,751 Meters.

Explanation:

0.86 + 22.4 + 4.25 = 27.51 km.

Convert that to meters which gives you 2,751 meters.

Which statement describes the number of protons in each atom of an element? (1 point)

A.The number of protons is given by the atomic number, which increases by one moving down in its column in
the periodic table.

B.The number of protons is given by the atomic number, which increases by one moving from left to right across
each row of the periodic table.

C.The number of protons is given by the mass number, which increases by one moving down in its column in
the periodic table.

D.The number of protons is given by the mass number, which increases by one moving from left to right across each row of the periodic table

Answers

Answer:

B.

Explanation:

The statement that describes the number of protons in each atom of an element is

B. The number of protons is given by the atomic number, which increases by one moving from left to right across each row of the periodic table.

What is an atom?

An atom is the smallest divisible particle that is very small, and different substances are made up of atoms. An atom is made up of electrons, protons, and neutrons.

The elements are made up of atoms. The number of protons equals the atomic number of the element. The periodic table is organized as increasing atomic numbers from left to right.

Thus, the correct option is B, The number of protons is given by the atomic number, which increases by one moving from left to right across each row of the periodic table.

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b. The student leaves the beach because a hurricane warning comes in. In a
hurricane, water is warmed by the Sun. The air above the ocean is warmed by the
water and rises, causing cooler air masses to sink, resulting in wind. Describe how
heat transfer is involved in hurricanes. (3 points)

Answers

Warm air is transferred from the surface to high elevations near the eye, further accelerating winds and circulation. Composed of rows of cumulonimbus clouds--big thunderstorm. They are usually the first part of the cyclone to arrive on land. Yw

2 Several scientists have adapted our model of the atom. These scientists include Democritus, Dalton, Thompson, Rutherford, Bohr, and several others. Describe why the model of the atom changed and what additional evidence would require the model to change again.​

Answers

Answer:

he model of the atom changed and what additional evidence would require the model to change again.​

because ;

Explanation:

This atomic model has changed over time. Scientists used the model to make predictions. Sometimes the results of their experiments were a surprise and they did not fit with the existing model. Scientists changed the model so that it could explain the new evidence.

Atomic model keep changing because the electrons around the nucleus are not fixed and they keeps rotating or changing their position in valence orbits around the nucleus. In one moment they are present on one side of the nucleus and at very next moment they will be on the other side due to their continuous rotation.

For Carbon - 14, the top number will be ____. The bottom number will be ____.

Answers

top number will be 14 and bottom number will be 6

Need it in 2 minutes ASAP

Answers

Answer: read your book

Explanation: if you read it should be in there

What information in a balanced chemical equation shows how many moles of a reactant are involved in the reaction?

Answers

Answer: Coefficients

Explanation: The coefficients in a balanced chemical equation tell you how many moles of reactants you'll require and how many moles of product you'll be able to make.

Answer: The coefficient in front of the molecule tells it’s relative number of moles.

Explanation: Quiz

PLS HELP ME !!!!!!!!!!​

Answers

Answer

the answer is it will bubble and foam.

Explanation:

when mixed with vinegar, baking soda will foam almost like a shaken carbonated drink.

Hope that helps!!!

How many moles of AICI3 are produced?

Answers

Answer:Solving these equations, we see that, beginning with 6.0 grams of aluminum, 0.22 moles of AlCl3 can be formed, and that, beginning with 3.8 grams of chlorine, 0.036 moles of AlCl3 can be formed.

Explanation:

13. Find the total number of atoms present in the following molecules.
a. 5 H₂O
b. Zn Cl₂​

Answers

Answer:

A. 5H²O=23

B.ZnCL²=135

The table below gives the numbers of protons, electrons, and neutrons in four atoms.

Atom Number of protons Number of neutrons Number of electrons
1 9 8 9
2 9 9 8
3 9 9 10
4 9 10 9

Based on the table, which atom has a charge of –1?
1
2
3
4

Answers

Answer:

3

Explanation:

i took the quiz

Answer:

Atom 3

Explanation:

The given data is as follows:

Atom number   Protons   Neutrons   Electrons

1                          9               8                9

2                         9               9                8

3                         9               9                10

4                         9               10               9

The charge on an atom is given by the relation:

Charge = number of protons - number of electrons

For atom 1: charge = 9 - 9 = 0

Atom 2 : charge = 9-8 = 1

Atom 3: charge = 9 -10 = -1

Atom 4 : charge = 9-9 = 0

why is mitochondria called the power house of a cell ?​

Answers

Mitochondria are membrane-bound organelles found in the cytoplasm of all eukaryotic cells that generate the cell’s primary energy molecule ATP (adenosine triphosphate).
Mitochondria are known as the powerhouse of the cell because it is responsible for the extracting energy from food through cellular respiration. The energy is released in the form of adenosine triphosphate (ATP).

Answer:

Hey mate....

Explanation:

This is ur answer....

Mitochondria are tiny organelles inside cells that are involved in releasing energy from food. This process is known as cellular respiration. It is for this reason that mitochondria are often referred to as the powerhouses of the cell.

Hope it helps!

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What is the mass number of fluorine (F) with ten neutrons? Such an atom has a mass of 18.998 amu

What is its mass in grams?

Answers

Explanation:

mass of Fluorine = 10proton + 10 neutron

mass = 20

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What will happen to the atoms and molecules of a substance when it undergoes a
chemical reaction?

Answers

Answer:They change

Explanation:

Be more specific the next time you ask a question :)

10 cm3 of metallic cylinder has a mass of 39.35 g. The density of this cylinder is
Group of answer choices

3.935 g/cm3

39.35 g/cm3

10 g/cm3

5.935 g/cm3

Answers

Answer:3.935g/cm3

Explanation:39.35 g. /10cm3 = 3.935g/cm3

10 cm³ of metallic cylinder has a mass of 39.35 g. The density of this cylinder is 3.935 g/cm³.

Density is a measure of the amount of mass per unit volume of a substance. It is an intensive physical property, meaning that its value does not change depending on the size of the object.

Density is calculated by dividing an object’s mass by its volume.

The density of water is 1,000 kg/m³ at 4°C. The unit of density is kg/m³ (kilogram per cubic meter). The SI unit of density is kg/m³

Density = mass/volume

            = 39.35 g/10 cm³

            =3.935 g/cm³.

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How many grams of tin would occupy 5.5 cm^3, if it had a density of 7.265 g/cm^3

Answers

Answer:

Density=Mass/Volume

7.265=M/5.5

Mass=7.265×5.5g

=39.9575g

difference between orbit and orbital​

Answers

Answer:

An orbit is a fixed path on which electrons revolve around the nucleus.

An orbital is the probable area of finding the maximum density of electrons in an atom. ..

what is RbCIO2 name?​

Answers

Answer:

RbCIO2 rubidium chlorite magnesium hypocarbonite.

There are two types of chemical compound one is covalent compound and other is ionic compound, covalent compound formed by sharing of electron and ionic compound formed by complete transfer of electron. Therefore, RbCIO[tex]_2[/tex] is named as rubidium chlorite magnesium hypo carbonite.

What is chemical Compound?

Chemical Compound is a combination of molecule, Molecule forms by combination of element and element forms by combination of atoms in fixed proportion.

An ionic compound is a metal and nonmetal combined compound. Ionic compound are very hard. They have high melting and boiling point because of strong ion bond.

The compound that is ionic in nature can be dissociated very easily in water. Since ionic compounds are polar in nature, they readily dissolve in water. The name of the given compound is rubidium chlorite magnesium hypo carbonite.

Therefore, RbCIO[tex]_2[/tex] is named as rubidium chlorite magnesium hypo carbonite.

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what is Planck's constant ??​

Answers

Planck's constant =

6.62607004 × 10-34 m2 kg / s

Explanation:

Step by Step explanation

The Planck constant, or Planck's constant, is a fundamental physical constant denoted h, and is of fundamental importance in quantum mechanics. A photon's energy is equal to its frequency multiplied by the Planck constant. Due to mass–energy equivalence, the Planck constant also relates mass to frequency. Wikipedia

Answer:

The Planck constant, or Planck's constant, is a fundamental physical constant denoted h, and is of fundamental importance in quantum mechanics. A photon's energy is equal to its frequency multiplied by the Planck constant. Due to mass–energy equivalence, the Planck constant also relates mass to frequency.

Plancks constant =

6.62607004 × 10-34 m2 kg / s

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Which is a component of John Dalton’s atomic theory?
The ratio of atoms in a compound can vary.
The atoms of a single element differ.
An atom is a small particle that cannot be broken down.
Atoms of different elements can be identical.

Answers

Atoms of different elements can be identical

Answer:

should be D

Explanation:

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