Answer:
The empirical formula : Na₂Cr₂O₇
Further explanation
Given
170 g sample contains :
29.84 g sodium, 67.49 g chromium, and 72.67 g oxygen
Required
The compound's empirical formula
Solution
mol ratio of elements :
Na : 29.84 : 23 g/mol = 1.297
Cr : 67.49 : 51,9961 g/mol = 1.297
O : 72.67 : 16 g/mol = 4.54
Divide by 1.297
Na : Cr : O = 1 : 1 : 3.5 = 2 : 2 : 7
Explanation:
Choose the statement that describes what will happen to pH as hydrogen ion concentration increases. Multiple Choice pH will not change. О O pH will increase pH will decrease.
The statement that describes what will happen to pH as hydrogen ion concentration increases is: "pH will decrease."
The pH of a solution is a measure of its acidity, and it is defined as the negative logarithm of the hydrogen ion concentration (H+). As the hydrogen ion concentration increases, the pH of the solution decreases, indicating an increase in acidity. Conversely, as the hydrogen ion concentration decreases, the pH increases, indicating a decrease in acidity.
The pH scale is a measure of the acidity or basicity (alkalinity) of a solution. It ranges from 0 to 14, with 7 being neutral. Solutions with a pH less than 7 are considered acidic, while solutions with a pH greater than 7 are considered basic or alkaline.
The hydrogen ion concentration (H+) of a solution is an important factor in determining its pH. As the concentration of hydrogen ions increases, the solution becomes more acidic, and the pH decreases. Conversely, as the concentration of hydrogen ions decreases, the solution becomes less acidic, and the pH increases.
It's important to understand the pH of solutions because it can have a significant impact on chemical reactions and biological processes. For example, the pH of the human body is carefully regulated, and deviations from the normal pH range can lead to serious health problems. Similarly, the pH of soil, water, and other environments can have a profound effect on the survival and growth of plants, animals, and microorganisms.
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do water molecules have high cohesion
According to the aforementioned assertion, water has the highest level of cohesiveness among non-metallic liquids.
What is molecule and its types?(1) A molecules is the smallest constituent of a chemical compound and element that possesses the elemental composition of that constituent or element. Chemical bonds are used to connect molecules to create molecules. Two different categories of molecules exist: 2. The molecules of an element The molecules that make up an element.
Is water a molecule?Atoms come together to form molecules. These three atoms that make up a molecule of water are two oxygen (O) atoms, one hydro (H) molecule, and another. As a result, water is sometimes abbreviated as H2O. A single drop of liquid contains billions of water molecules in reality.
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how many mg ions are present in 3.00 moles of mgcl2?
There would be 72930 mg of magnesium ions in 3.00 moles of MgCl₂.
To find the number of mg ions in 3.00 moles of MgCl₂, we need to understand that one mole of MgCl₂ contains one mole of magnesium ions (Mg₂+) and two moles of chloride ions (Cl-).
So, in 3.00 moles of MgCl₂, there would be 3.00 moles x 1 mole Mg₂+/mole MgCl₂ = 3.00 moles of magnesium ions.
To convert moles to milligrams, we multiply by the atomic weight of magnesium, which is 24.31 g/mole:
3.00 moles x 24.31 g/mole = 72.93 g
And finally, to convert grams to milligrams, we multiply by 1000:
72.93 g x 1000 mg/g = 72930 mg
So, there would be 72930 mg of magnesium ions in 3.00 moles of MgCl₂.
Ions are charged particles that form when an atom gains or loses one or more electrons. The resulting ion has a net positive or negative charge, depending on whether electrons were lost (positive ion) or gained (negative ion). Ions play a crucial role in many chemical and biological processes, including chemical reactions, electrolysis, and the transport of ions through cell membranes. The charge of an ion determines its behavior and interaction with other ions and molecules. Positive ions, also known as cations, tend to be metal atoms that have lost electrons, while negative ions, also known as anions, tend to be non-metal atoms that have gained electrons.
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Do we need to worry about Earth's heat running out? Why or why not?
While that sounds frightening, some estimates place the cooling of the Earth's core at tens of billions of years, or as much as 91 billion years. That is a very long time, and the Sun will most likely burn out much sooner than the core in around 5 billion years.
Why do you think the heating of the Earth is important?This heat is responsible for plate tectonics and parts of the rock cycle. The geological processes that transform the three major rock types (igneous, metamorphic, and sedimentary) from one to the other.
The internal heat of the Earth is critical for processes that result in the transformation of one rock type to another.
Thus, yes, we need to worry about Earth's heat running out
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A system that does no work but which receives heat from the surroundings has: (a) q < 0, ΔE > 0 (b) q > 0, ΔE < 0 (c) q = ΔE (d) q = –ΔE (e) w = ΔE
A system that does no work but which receives the heat from the surroundings is, the correct option is (c) q = ΔE.
The relationship between the change in internal energy (ΔE), the heat (q), and the work done (w) are as follows:
ΔE = q + w
If the system does no work, then the value of w = 0. solving the values in equation , the change in internal energy (ΔE) will be :
ΔE = q + 0
ΔE = q
q = ΔE
Thus, the value of the heat for this system will be q = ΔE .
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Never remove chemicals or other equipment from the laboratory..
Work spaces should be maintained spotless and organized. Small volumes of liquid are measured and dispensed using pipets. Use your mouth to syphon the liquid into the pipet. Thus, it is true.
What technician care about chemicals in lab?If any equipment is malfunctioning and halt, turn it off. If an acid is splashed on your skin, thoroughly rinse it off. Always completely wash your hands with soap and water after handling chemicals, biological specimens, and other lab materials.
Small volumes of liquid are measured and dispensed using pipets. Use your mouth to syphon the liquid into the pipet. Cleanliness and organization should be maintained in the workplace. Pipets are used to measure and dispense small quantities of liquid.
Therefore, Every substance in the lab should be regarded as hazardous. All chemicals should be put back in their original containers.
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When 5.00 grams of ammonium chloride, NH4Cl, is added to 100. mL of water the temperature drops by4.2°C, how much would the temperature change if 10.0 grams is added to 1000 mL of water?
Without heat capacity we cannot determine
The given information makes it impossible to calculate how the temperature will change when 10.0 grammes of ammonium chloride are added to 1000 mL of water. Numerous variables, including the solution's specific heat, the container's heat capacity, and the velocity of mixing, among others, affect the temperature change. The temperature change that occurred after adding 5.00 grammes of ammonium chloride to 100 mL of water does not always correspond to the temperature change that occurs when a different amount of solute is dissolved in a different volume of solution.
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Flowing water, wind, sunlight, and nuclear materials are all resources that are used to generate electrical energy. Hydroelectric, wind, solar, and nuclear power stations are not believed to directly impact the global climate because
A.
they all use renewable energy resources and do not negatively impact ecosystems.
B.
they do not release any type of pollution into their surrounding environments.
C.
they are able to generate more electrical energy than other types of power stations.
D.
they do not directly release greenhouse gases into the atmosphere.
Hydroelectric, wind, solar, and nuclear power stations are not believed to directly impact the global climate because they all use renewable energy resources and do not negatively impact ecosystems.
What is an ecosystem?
Ecosystem is defined as a system which consists of all living organisms and the physical components with which the living beings interact. The abiotic and biotic components are linked to each other through nutrient cycles and flow of energy.
Energy enters the system through the process of photosynthesis .Animals play an important role in transfer of energy as they feed on each other.As a result of this transfer of matter and energy takes place through the system.
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automotive air bags inflate when sodium azide decomposes explosively to its constituent elements. how many grams of sodium azide are required to produce 24.4 l of nitrogen gas at standard temperature and pressure?
There would be 47.2 grams of sodium azide are required to produce 24.4 l of nitrogen gas at standard temperature and pressure
Avogadro's law states that 1 mole of each material at STP occupies 22.4 L and includes an avogadro's number 6.02 x10 ²³ of particles.
Equation of the reaction
2NaN₃⇒ 2Na + 3N₂(g)
Molar mass of N₂ = 28 g/mol
The moles are identified using the equation below:Number of moles = volume/molar volume
Moles N₂=24.4L/22.4L
Moles N₂= 1.09 mole
2 moles of sodium azide turn into 3 moles of nitrogen according to stoichiometry.
Moles NaN₃ can we calculate using the unitary method
Moles NaN₃ 2/3 x moles N₂
Moles NaN₃ = 2/3 x 1.09
Moles NaN₃ =0.726 moles
Molar mass of NaN₃ = 65 g/mol
Mass = moles x molar mass
= 65g / moles x 0.726 moles
= 47.2 g of NaN₃
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When the pH of a solution decreases by 1, say from pH = 3 to pH = 2, by what factor does the hydronium ion concentration increase? Why?Chemistry Acids and Bases pH calculations
When the pH of the solution decreases by 1, from pH = 3 to pH = 2 , by the factor does the hydronium ion concentration increase is 10.
The pH of the solution decreases by 1
The pH = 3
The pH = 2
The pH formula is expressed as :
pH = - log [ H₃O⁺]
For pH = 3
pH = - log [ H₃O⁺]
[ H₃O⁺] = 10⁻³
For pH = 2
pH = - log [ H₃O⁺]
[ H₃O⁺] = 10⁻²
The change in pH = 10
The hydronium ion concentration will increase by the tenfold (10).
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the relationship between the concentrations of reactants and products of a system at equilibrium is given by the law of mass action.
The relationship between reactant and product concentrations in a system at equilibrium is given by the law of mass action. This statement is true.
What is the law of mass actionThe law of mass action states that the reaction rate is proportional to the product of the concentrations of each reactant.
This law can be used to describe the behavior of solutions in dynamic equilibrium.
The law of mass action also states that the ratio of reactant concentration to product concentration is constant in chemical equilibrium.
Equilibrium constant (K c )The concentrations of reactants and products are constant at equilibrium at a given temperature. Consider the following simple reversible reaction.
A+B C+D
A :reactant
B :reactant
C : products
D: products.
A mixture of products and reactants in chemical equilibrium is called an equilibrium mixture. There is a relationship between the concentrations of products and reactants in an equilibrium mixture
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The label CORROSIVE on a chemical container indicates
The label CORROSIVE on a chemical container indicates that the contents are corrosive, meaning that contact with these materials can cause damage to living tissue and materials.
It is important to exercise caution when handling these materials and to ensure that the containers are well labeled and stored in a safe and secure location.
Corrosive chemicals are substances that can cause damage or destruction to other substances with which they come into contact by means of a chemical reaction. These reactions can occur on contact, or over a period of time. Corrosive chemicals can cause damage to the skin, eyes, respiratory tract, and other parts of the body.
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How many moles of nao2 are needed to react with 75. 0 l of carbon dioxide at stp?.
To calculate the moles of NaO2 needed to react with 75.0 L of CO2 at STP, you must first calculate the number of moles of CO2 present. To do this, use the ideal gas law,
PV = nRTwhere P is the pressure (1 atm for STP), V is the volume (75.0 L), n is the moles of CO2, R is the ideal gas constant (0.08206 Latm/molK), and T is the temperature (273.15 K for STP). Solving for n, you get n = (75.0 L)(1 atm) / (0.08206 Latm/molK)(273.15 K) = 2.80 mol CO2.
Now, the reaction equation is 4NaO2 + 2CO2 -> Na2CO3. Since there are 2 mol CO2 per mole of NaO2, you need to multiply 2.80 mol of CO2 by 1/2 to get the number of moles of NaO2: 2.80 mol CO2 x 1/2 = 1.40 mol NaO2. Therefore, 1.40 mol NaO2 are needed to react with 75.0 L of CO2 at STP
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Place each example into the corresponding characteristic used to distinguish species.
Molecular features
There are some example of characteristic used to distinguish species. Morphological Traits: the quantity of stamens in a flower.
Reproductive isolation: frequency and length of sounds in frog mating calls.
Molecular features :Amoeba mRNA sequences
Ecological factors: The section of the tree occupied by warblers for breeding and the salt marsh plants' susceptibility to saltwater.
A species cannot successfully reproduce with another species due to barriers resulting from geography, behavior, physiological, molecular features, genetic differences, or other factors. Examples of Molecular Traits of Morphological Traits features include the shape and structure of an animal's internal organs and bones, as well as alterations to the animal's external appearance. A snowshoe hare, for instance, is well-equipped for the winter months because of its huge rear feet for quick movement and its white coat for stealth.
Your question is incomplete but most probably your full question was
Place each example into the corresponding characteristic used to distinguish species.
Morphological traits
Reproductive isolation
Molecular features
Ecological factors
The quantity of stamens in a flower.
Frequency and length of sounds in frog mating calls
Amoeba mRNA sequences
The section of the tree occupied by warblers for breeding and the salt marsh plants' susceptibility to saltwater.
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How many atoms of oxygen are present in 6.00 grams of KClO3? A. 2.95 x 1022 B. 8.85 x 1022 C. 8.13 x 10-26 D. 2.44 x 10-25
The number of the atoms of the oxygen are present in the 6 g of the KClO₃ is the 8.6 × 10²² atom of oxygen.
The compound = KClO₃
The mass of the KClO₃ = 6 grams
The molar mass of the KClO₃ = 122.6 g/mol
The number of the moles = mass / molar mass
The number of the moles = 6 / 122.6
The number of the moles KClO₃ = 0.048 mol
The 1 mole of = 3 (6.02 x 10²³ ) atom of oxygen
0.048 mole of KClO₃ = 0.048 × 3 (6.02 x 10²³ ) atom of oxygen
= 8.6 × 10²² atom of oxygen
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why is energy realeased when substances are oxidised
Energy is released when substances are oxidized because oxidation is a chemical reaction that involves the transfer of electrons from one species to another.
In oxidation reactions, a substance (the oxidizing agent) accepts electrons and becomes reduced, while another substance (the reducing agent) loses electrons and becomes oxidized. When the oxidizing agent gains electrons, it releases energy in the form of heat or light.
This is because the electrons have a lower energy level in the oxidized species than they do in the reduced species, and the energy difference between these two energy levels is released as heat or light.
This release of energy is a fundamental principle in many chemical processes, including cellular respiration, combustion, and corrosion. In these processes, energy is released when substances are oxidized, and this energy can be used to perform work or to generate heat or light.
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Is water and hexane polar or non-polar solvents?
Water is a polar solvent whereas, hexane is non-polar solvent.
Hexane is nonpolar, so why?Because the electronegativity difference in between carbon and carbon atoms is negligible and the hydrogen and carbon atoms have very little difference in electronegativity, hexane is non-polar. London dispersion forces hold the molecules of liquid hexane linked.
Water is a polar solvent, but why?Because the electrons of the hydrogen atoms are "pulled" toward the electrons of the oxygen atom, water (H2O) is a polar molecule. As a consequence, there is a zone of positive charge on the hydrogen atoms and a zone of negative charge on the oxygen atom at the opposing end of the molecule.
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What is the strongest intermolecular force possible between molecules of the following structure? Η Η Η Η H-C-<-<-<-S-H Η Η Η Η 1 1 ООООО ion-dipole interactions London dispersion forces dipole-dipole interactions o hydrogen bonding O covalent bonding
Butanethiol is the given molecule [tex]C_{4} H_{9}SH[/tex]
Intermolecular forces are the forces that act between molecules. Intramolecular forces, on the other hand, act within molecules.
In comparison to intramolecular forces, intermolecular forces are weaker. The London dispersion force, dipole-dipole interaction, ion-dipole interaction, and van der Waals forces are all examples of intermolecular forces.
The strongest intermolecular force between Butanethiol molecules is dipole-dipole interaction. The S-H bond in Butanethiol is a polar bond.
S has a higher electronegative potential than H.
Because of the difference in electronegativity between S and H, partial charges (partial positive charge on H and partial negative charge on S) will form.
One molecule's partial charge attracts the opposite charge of another molecule. These forces of attraction are known as dipole-dipole interactions.
The strongest intermolecular forces present between Butanethiol molecules are dipole-dipole interactions.
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for any of the following that can exist as isomers, state the type of isomerism. [co(nh3)5cl]br2
[Co(NH3)5Cl]Br2 optical isomers geometric isomers linkage isomers coordination isomers .
Isomers are substances that have the exact same number of atoms as one another, meaning they have the exact same empirical formula, but differ from one another in terms of how the atoms are ordered. Ethylbenzene, m-xylene, p-xylene, and o-xylene are some examples of isomers having the formula C8H10.
Dimethyl ether and ethanol are isomers of one another because they both have the same chemical formula, C2H6O, but different structural formulas. 2. Neopentane, pentane, and iso-pentane are all isomers of one another.
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what is the ph of a base solution that has [oh-] = 8.3 x 10-8 m?
the ph of a base solution is pH= 6.92.
The base is so dilute that we must also consider the OH- that comes from the autoionization of water.
H2O⇌H++OH-
Kw=[H+][OH-]
[OH-]= 8.3 x 10-8 m
pOH=-log(8.3 x 10-8)= -7.08
pH=14.00 - pOH
pH= 14.00 - 7.08
pH= 6.92
The Henderson-Hasselbach Equation can be used to determine the pH of a buffer solution and its conjugate base. It can be approximated because equilibrium between a weak acid and the base that serves as its conjugate permits the solution's pH to remain constant even after the addition of modest amounts of a strong acid or base.
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you calculate you need 556mg of a dry powder, which you will weigh on a torsion balance. what would this number need to be rounded to to have it be a readable value on the balance
Rounding to 560mg will make the value of 556mg visible on a torsion balance. This is because any value below 0.1mg will not be readable because the lowest count of a torsion balance is typically 0.1mg.
Torsion balance: a tool for calculating the Earth's surface gravitational acceleration. Pendulums and gravimeters are other examples of such instruments that employ various techniques to arrive at the same conclusion. The torsion balance essentially consists of two tiny masses supported at opposing ends of a beam and at different altitudes. Because the masses are impacted differently by the force of gravity, the latter is suspended from a wire that twists. An optical system detects the angular deflection () caused by the twisting of the wire, and the torque (T), or twisting force, is determined by the straightforward expression T = k, where k is a constant that relies on the characteristics of the instrument. The magnitude of the torque is proportional to the gravitational force at the point of observation.
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why do soap molecules surround a stain
The head of a soap molecule is polar. A soap molecule's tail is nonpolar.. Having both polar and nonpolar parts allows the soap to interact with both water and grease molecules.
A micelle is created when the nonpolar ends of the soap molecules assemble around the grease mark. Detergents and other cleaning solutions contain surfactants, which are molecules that make it easier for water and other substances to mix together, such as oil or grease. After the surfactant makes water penetrate a stain and lift dirt particles off the fabric, the rinse sweeps the dirt away.In hot water, the fats and oils soften or melt, making it easier for them to adhere to the hydrophobic end of the soap molecule.
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what properties of life does water have
High heat capability, high heat of vaporisation, cohesion, adhesion, and decreased density when frozen. Polarity. "Universal" solvent.
What are properties defined as?According to the definition of a property, anything that has been owned by a individual or a company qualifies. A property could be anything physical like a house, car, or clothing, or it could be something intangible like stocks, patents, etc.
What is property and types?Property refers to anything that somebody, whether an individual or corporate entity, has a legitimate title to. Due to its legal title, the owners have certain rights or duties regarding it. It can be classified as either tangible or intangible. Tangibles include things like furniture, real estate, vehicles, and business equipment.
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Water have properties such as high heat capability, high heat of vaporization, cohesion, adhesion, and decreased density when frozen. polarity.
What are properties defined as?
According to the definition of a property, anything that has been owned by a individual or a company qualifies. A property could be anything physical like a house, car, or clothing, or it could be something intangible like stocks, patents, etc.
What is property and types?
Property refers to anything that somebody, whether an individual or corporate entity, has a legitimate title to. Due to its legal title, the owners have certain rights or duties regarding it. It can be classified as either tangible or intangible. Tangibles include things like furniture, real estate, vehicles, and business equipment.
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3 Cu + 8HNO3 --> 3 Cu(NO3)2 + 2 NO + 4 H2O
In the above equation how many grams of water can be made when 8 grams of HNO3 are consumed?
Round your answer to the nearest tenth. If you answer is a whole number like 4, report the answer as 4.0
Use the following molar masses. If you do not use these masses, the computer will mark your answer incorrect.:
Answer: 1.1433g
Explanation:
H3AsO4 + 3 I- + 2 H3O+ → H3AsO3 + I3- + H2O
The oxidation of iodide ions by arsenic acid in acidic aqueous solution occurs according to the stoichiometry shown above. The experimental rate law of the reaction is:
Rate = k[H3AsO4] [I-] [H3O+]
The reaction is in order relative to I in the number 1. when the oxidation of iodide ions by arsenic acid in acidic aqueous solution occurs according to the stoichiometry.
What is rate of reaction?In each of the reactants, the rate law displays the sequence in which a certain reaction occurs. The rate rule is Rate = k [H3AsO4] [I] [H3O+], and it applies to the reaction H3AsO4 + 3 I + 2 H3O+ ------> H3AsO3 + I3 I + H2O.
The reaction is first order with regard to each of the reactants, according to the interpretation of this. Consequently, the reaction is of the order of 1, relative to I.
The pace at which a chemical reaction occurs is known as the reaction rate or rate of reaction, and it is proportional to both the rise in product concentration per unit time and the fall in reactant concentration per unit time. Variable reaction times
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When the stoichiometric oxidation of iodide ions by arsenic acid in an acidic aqueous solution occurs, the reaction is in order relative to I in number 1.
What is the reaction rate?The rate law illustrates the order in which various reactions take place in each reactant. The reaction H3AsO4 + 3 I + 2 H3O+ follows the rate rule Rate = k [H3AsO4] [I] [H3O+]. H3AsO3 + I3 I + H2O is the equation.
The interpretation of this is that the reaction is first order with respect to each of the reactants. As a result, in relation to I, the reaction is of order 1.
The reaction rate, also known as the rate of reaction, is the rate at which a chemical reaction takes place. It is proportional to both the increase in product concentration per unit of time and the decrease in reactant concentration per unit of time. different reaction times.
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Question:
What conclusions can you draw about your aspirin based on the FeCl3 test? Answer in terms of both the structure of aspirin and the purity of your product.
Purity of Products
A pure product can be obtained after synthesizing a compound using various techniques in the laboratory. A pure compound is one that does not contain any impurities. Some examples of purification techniques include recrystallization, distillation, chromatography, crystallization, and sublimation among others.
According to the FeCl3 test, aspirin contains salicylic acid's phenol.
In this instance, we consider the ease with which ferric chloride, FeCl3, interacts with phenol groups; in fact, this is one method for qualitatively demonstrating the existence of phenols in an organic sample.
Hydroxile groups (-OH) joined to an aromatic ring are referred to as phenol groups. A material with phenol functional groups will now become purple if FeCl3 is added to it. In this instance, the aspirin sample will not react whereas the salicylic acid will become purple for the aforementioned reason because aspirin lacks a phenol group in contrast to salicylic acid, which is used to create aspirin but really has a phenol group.
Due to the creation of an iron-containing compound or chelant, this purple hue is evident.
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What does the abbreviation VSEPR stand for?
The abbreviation VSEPR stand for Valence Shell Electron Pair Repulsion.
What are the characteristics of VSEPR?
1. VSEPR stands for Valence Shell Electron Pair Repulsion, which describes how electron pairs repel each other, causing molecules to adopt certain shapes.
2. VSEPR predicts the geometry of a molecule based on the number of electron pairs around the central atom.
3. Electron pairs attempt to maximize their distance from each other, resulting in the arrangement of atoms in a molecule that most minimizes electron-pair repulsions.
4. VSEPR theory states that the electron pairs around the central atom are arranged in a way that minimizes repulsions between them, which results in the particular shape of a molecule.
5. VSEPR also predicts the relative bond angles between atoms in a molecule, and can be used to explain some of the properties of molecules.
VSEPR stands for Valence Shell Electron Pair Repulsion. It is a model used in chemistry to predict the molecular geometry of molecules based on the repulsion of the valence electrons in the outermost shells of the atoms that comprise the molecule.
Therefore, Valence Shell Electron Pair Repulsion is the answer.
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Culinary Arts and Hospitality I (DOE 7173)
The defining characteristics of the hospitality and tourism involved in Wendy and Peter's weekend getaway is inconsistency.
What is involved hospitality and tourism?Hospitality and tourism are industries that provide services related to leisure and travel, including accommodation, food and beverage, transportation, recreation, and cultural experiences. This can include activities such as hotels, resorts, theme parks, restaurants, transportation services, and tourism attractions.
The overall goal of the hospitality and tourism industry is to create enjoyable and memorable experiences for travelers, both domestically and internationally. In cases of inconsistency, tourism industry products and services may differ. Even the same hotel room in the same week with the same weather can be distinguished in different ways.
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How do you calculate the energy of a photon of electromagnetic radiation?
We can calculate the energy of a photon by using the formula,
E = hf or E = hc / λ
The energy associated with a single photon is generally given by E = h ν , where E is the energy (SI units of J), h is Planck's constant (h = 6.626 x 10⁻³⁴ J s), and ν is the frequency of the radiation (SI units of s⁻¹ or Hertz, Hz).
Electromagnetic radiations are defined as the radiation that has both electric and magnetic fields and travels in waves. It usually comes from natural and man-made sources. Electromagnetic radiation often vary in strength from low energy to high energy. The examples of electromagnetic radiation includes radio waves, microwaves, infrared light, visible light, ultraviolet light, x-rays, and gamma rays.
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atoms of the same element that have different numbers of neutrons, what it?
Answer:
Isotopes.
Explanation:
Atoms of the same element that have different numbers of neutrons but the same number of protons are called Isotopes.