Answers
Answer : The color and wavelength of light is red and [tex]6.9\times 10^{-7}m[/tex] respectively.
Explanation :
Given:
Energy = [tex]2.88\times 10^{-18}J[/tex]
Now we have to determine the wavelength of light.
Formula used:
[tex]E=\frac{hc}{\lambda}[/tex]
where,
E = energy
h = Planck's constant = [tex]6.626\times 10^{-34}J.s[/tex]
c = speed of light = [tex]3\times 10^8m/s[/tex]
[tex]\lambda[/tex] = wavelength of light
Now putting all the given values in this formula, we get:
[tex]2.88\times 10^{-18}J=\frac{(6.626\times 10^{-34}J.s)\times (3\times 10^8m/s)}{\lambda}[/tex]
[tex]\lambda=6.9\times 10^{-7}m[/tex]
From the electromagnetic spectrum we conclude that the color of the light will be red of wavelength [tex]6.9\times 10^{-7}m[/tex].
Therefore, the color and wavelength of light is red and [tex]6.9\times 10^{-7}m[/tex] respectively.
Related Questions
what is 0.000980 in scientific notation
Answers
Answer:
9.80x10^-4
Explanation:
Answer:
9.80 x 10⁻⁴
Explanation:
The negative means that the decimal place was moved to the right and the exponent tells you how many places it was moved.
The solution in the beaker was a green color. This is an example of
Answers
Answer:
That means its a Transition Metal!
Explanation:
What’s the compound name for V2(S2O3)3
Answers
Answer: I HOPE THIS HELPS, HAVE A GREAT EARLY HALLOWEEN
Explanation:
PubChem CID: 1084
Molecular Formula: S2O3(2−) or O3S2-2
Synonyms: Thiosulphate THIOSULFATE ION sulfurothioate UNII-LLT6XV39PY Thiosulfate (S2O32-) More...
Molecular Weight: 112.13 g/mol
Which of these best describes the relationship between density and the rate of heat transfer?
A.) Heat transfers between objects regardless of density.
B.) The greater the difference in densities between objects, the slower the heat will transfer.
C.) The less dense the object, the faster the heat will transfer.
D.) The denser the object the faster the heat will transfer.
Answers
Answer:
C.) The less dense the object, the faster the heat will transfer.
ASAP MULTIPLE CHOICE WILL MARK BRAINLIEST
What is the charge on an electrically neutral atom of hydrogen?
+1
+2
0
−1
Answers
Answer:
+1
Explanation:
same amount of electrons as protons
How many moles are in 25.3 g of a sample of potassium nitrate (KNO3)?
Answers
Answer:
25.3 g of KNO₃ contain 0.25 moles.
Explanation:
Given data:
Number of moles of KNO₃ = ?
Mass of KNO₃ = 25.3 g
Solution:
Formula:
Number of moles = mass/ molar mass
Molar mass of KNO₃:
KNO₃ = 39 + 14+ 16×3
KNO₃ = 101 g/mol
Now we will put the values in formula.
Number of moles = 25.3 g/ 101 g/mol
Number of moles = 0.25 mol
Thus, 25.3 g of KNO₃ contain 0.25 moles.
Calculate the mass in grams of 8.24 x 1024 molecules of CO2
Answers
Answer:
Explanation:
1 mole of any gas contains 6.02 x 10²³ molecules of gas
6.02 x 10²³ molecules of CO₂ contains 1 mole of CO₂
8.24 x 10²⁴ molecules of CO₂ will contain 8.24 x 10²⁴/ 6.02 x 10²³ moles at STP
13.6877 moles
mol weight of CO₂ = 44 g
13.6877 moles of CO₂ = 44 g x 13.6877 g = 602.25 gm.
-2(-x-3) - 4x-1=13
gig
Answers
Answer:
that means a train railroad track dude
do you mean -2(-x--3) - 4x-1=13 without the gig
Explanation:
Which scenario BEST describes how an atom produces light?
electron loses energy as it transitions to lower energy level
electron gains energy as it transitions to lower energy level
electron gains energy as it transitions to a higher energy level.
electron loses energy as it transitions to higher energy level
Answers
Answer:
electron loses energy as it transitions to lower energy level
Explanation:
An atom is capable of absorbing and releasing electrons. The atom of a substance is said to be at its GROUND LEVEL STATE when it contains the lowest energy level. However, when it absorbs or takes in energy, it moves to a high energy level called EXCITED STATE. This level is unstable and hence, subject to declination.
Due to the instability of the excited state of an atom, it tends to lose the absorbed electrons and in the process of doing so, it emits or produce light. Therefore, according to this question, light is produced by an atom when the electron loses energy as it transitions to lower energy level i.e excited state to ground level state.
Calculate the mass of 9.75x1021 atoms of helium.
Answers
Answer: 99.5475
Hope this helps(:
if anyone can sole I give big brain
___. CO(g) +. ___ H2(g) ---> ___ C8H18(l) +. ___ H2O
Answers
Answer:
. 8 CO(g) + 17 H2(g) 1 C8H18(l) + 8 H2O
Explanation:
Parts working together for one purpose
Answers
Answer:
A system is a collection of parts that interact together for a common purpose. But a system is not just any old collection of parts. No single part can do the job alone, and any malfunction or delay is likely to affect the whole system. A body system is a set of body parts that do a particular task.
Explanation:
As you move left to right across a period, which of the following always increases?
A)
Atomic number
B)
Atomic mass
C)
Atomic weight
D)
Shell number
Answers
Answer:
A) Atomic number
Explanation:
Scandium (II) Oxide
A. ScO2
B. Sc2O2
C. ScO
D. ScC2O4
Answers
is mechanical potential or kinetic energy
Answers
The following chemical reaction is balanced, but
the coefficients used are larger than necessary. Rewrite this balanced equation using the smallest coefficients possible.
9Fe(s) + 12H20(I) — 3Fe3O4(s) + 12H2(9)
Answers
Answer:
Explanation:
Divide each coefficient by 3:
3Fe(s) + 4H2O(l) ---> Fe3O4(s) + 4H2(g)
The balanced equation using the smallest coefficients possible:
3 Fe (s) + 4 H₂O (I) → Fe₃O₄ (s) + 4 H₂ (g)
What is the balanced chemical equation?A chemical equation can express a chemical reaction in terms of chemical symbols of the substances. A chemical equation exhibits reactants, products, and an arrow representing the direction of the reaction.
A balanced chemical equation exhibits an equal number of atoms of each element is equal on either side of the equation. From the law of conservation of mass, the total mass of the elements on both sides of the chemical equation.
Given, a chemical reaction is balanced, but the coefficients used are larger than required:
9Fe (s) + 12 H₂O (I) → 3 Fe₃O₄ (s) + 12 H₂ (g)
Divide the coefficients by 3 to get the smallest coefficients:
The chemical equation becomes:
3Fe (s) + 4 H₂O (I) → Fe₃O₄ (s) + 4 H₂ (g)
Learn more about the balanced chemical equation, here:
brainly.com/question/15052184
#SPJ2
Explain what is Thermal Energy
Answers
Answer:
Thermal energy refers to the energy contained within a system that is responsible for its temperature. Heat is the flow of thermal energy. A whole branch of physics, thermodynamics, deals with how heat is transferred between different systems and how work is done in the process
Explanation:
thermal energy Is just heat
what skill is a scientist using when she listens to the sound that whales make
Answers
Answer:
Making observations
Explanation:
how many atoms are in 3Mg(OH)2
Answers
In a formula unit of Mg(OH)₂, there are one magnesium ion and two hydroxide ions; or one magnesium, two oxygen, and two hydrogen atoms.
What is Formula Unit ?A formula unit is the chemical formula of an ionic compound that lists the ions in the lowest ratio that equals a neutral electrical charge.
In chemistry, we use chemical formulas to describe the number of elements or molecules that make up a substance.
Therefore , In a formula unit of Mg(OH)₂, there are one magnesium ion and two hydroxide ions; or one magnesium, two oxygen, and two hydrogen atoms.
Learn more about formula unit here ;
https://brainly.com/question/21494857
#SPJ2
If someone takes a material that looks pure, and then they do something to it that results
in two separate materials, how can they know if they originally had a pure-looking
mixture of two things that they simply separated into its parts, or if they originally had a
pure material that was a compound that was chemically broken down into new
compounds or elements?
lile
Answers
Answer:
The determination of the nature of the combination of the two separate materials in the original material that looks pure is based on the characteristic of the change process they undergo to become two separate materials.
Therefore, they can know if they initially had a mixture or a compound by the following steps;
1) If the two separated materials can be easily remixed to form the original material, then they likely have a mixture of the two separate materials
2) If the process that results in the formation of the two separate materials, involves the absorption or evolves heat or other forms of energy, then the original substance was a compound
3) If the two newly formed materials is seen to be a permanent change, then the original material was a compound
Explanation:
ASAP MULTIPLE CHOICE WILL MARK BRAINLIEST
Nitrogen(N) is made up of 99.632% 14N and 0.368% 15N.
The atomic mass of 14N is 14.003 amu. The atomic mass of 15N is 15.000 amu.
What is the average atomic mass of nitrogen?
14.0 amu
14.006 amu
15.00 amu
15.50 amu
Answers
Answer:
14.006
Explanation:
List 4 properties of ironically boned compound
Answers
Answer:
do u mean ironically? if so here are some:
they're hard and very brittle!!
good insulators
contain high melting points
the form crystals
why do covalent bonds melt faster and have low melting points than ionic bonds?
Answers
Answer:
Covalent compounds have bonds where electrons are shared between atoms. Due to the sharing of electrons, they exhibit characteristic physical properties that include lower melting points and electrical conductivity compared to ionic compounds.
Explanation:
which of the following is a part of daltons atomic theory select all that apply
Answers
Answer:
Stewie Griffin
Explanation:
Plz help!
How is oxygen an element? Explain.
Answers
What is the mass of 1.25 x 10^24 Oxygen atoms? *
1.)32.0 g
2.)1.6 x 10^23 g
3.)O 16.0g
4.)33.2 g
Answers
Answer:
4.)33.2 g
Explanation:
(1.25E24/6.022E23)×15.99
WILL GIVE BRAINLIEST! URGENT!
In the vinegar and salt solution, is it possible there was some other compound that formed on the egg shell instead of the food coloring? Based on what you know about the charge on the egg shell and the ions in the solution, what might have reacted to form a compound on the shell instead of the food coloring?
Answers
Answer: Vinegar
Explanation:
The vinegar and salt affects the shell because food coloring does not affect anything besides the color so the viniger has substances which dissolves thing and the salt just made the vinegar a stronger substance. The Vinegar reactes to form a compund on the shell.
When a carbon atom joints chemically with an oxygen atom it makes carbon monoxide what is the term for carbon monoxide?
a. a molecule
b. a mixture
c. an alloy
d. an element
Answers
Answer:
A
Explanation:
I learned this last year
The energy required to remove an electron from the outermost shell is called
Answers
Answer:
Ionization energy
Explanation:
Ionization energy can be defined as the energy needed to remove an electron from the outermost she'll.
Who wrote the first modern chemical textbook?
Antoine Lavoisier
Dmitri Mendeleev
Henry Moseley
Johann Dobereiner
Answers
Answer:
A. Antoine Lavoisier
Explanation:
He is know for creating the first chemical textbook. This textbook included rules for naming different chemical compounds, which is the still the same method we use to this day.
Hoped this can help! :D
Answer:
a
Explanation: