Prussian blue makes your shirt whiter, why?  a. It bleaches b. It reflects blue wavelength of light c. It absorbs blue wavelength of light d. It destroys algae that causes yellowish discoloration *Choose only one answer

Q: What is the frequency and the energy for the typical wavelength for the X Ray region of the…

A: Given, wavelength of X-ray  =an Angstrom                                             = 1 A°we are…

Q: What are the 15 parts of a microscope? Differentiate the Optical Parts and Mechanical Parts.

A: Microscope is the instrument used to view very small objects or substance.

Q: Referring to the figure below, explain why the two peppers look different

A: We can see wrinkles on the peppers. The reason behind this is given in step 2.

Q: Why can we use X-rays, but not radio waves or microwaves, to give an image of bones and teeth?

A:

Q: MCQ 40: The color of lodine (1) is A. grey B. black (s) C. purple (vapors) D. all of above

A: Iodine is element in the periodic table having elemental symbol I and atomic number 53 and belongs…

Q: Activity type of Alumina (meaning of type I, II, III, etc.) what do the numbers mean?

A: Alumina is a granular and extremely porous form of aluminum oxide. It is available in basic, acidic…

Q: I need help explaining why led bulbs are considered to be superior to other types of bulbs.

A: LED bulbs are generally known as light emitting diode bulb .

Q: Use the provided graph paper to construct a Beer's Law plot: absorbance versus concentration. Draw a…

A:

Q: The shielding in NMR is: a.) Place a metal around the sample tube before placing it in the…

A: Nuclear  magnetic  Resonance is a physical phenomenon when nuclei are disrupted by a faint…

Q: By dissolving .... ...in water, colored solutions are formed a- NiCl, and FeCl3 b- NaCl and COCI, c-…

A: Given statement is :  By dissolving ...............in water, colored solutions are frmed.  a). NiCl2…

Q: The energy of a photon emitted when an electron underwent a transition to n = 1 energy level was…

A: Since you have posted multiple questions, we are entitled to answer the first question only.

Q: Jack and Jill ran away from their evil stepmother's cottage. Jack is a lean boy while Jill is a…

A: Fat is a storage of energy.

Q: What chemical reaction happens when green dye changes to blue when expose to air?

A: when green dye changes to blue when expose to sir a chemical reaction happens that is redox…

Q: Why do energy levels exist in atoms? a. electrons are negatively charged b. electrons are…

A: Electrons in an atom occupy different energy levels that exist in an atom.

Q: Which wavelength of light is most likely to cause a sunburn? Explain. A.) 700 nm  B.) 400 nm  C.)…

A: Wavelength is the distance between two consecutive crests of a wave.Relation between Energy and…

Q: what is X-Ray ? what is use of it?

A: X-ray is an electromagnetic radiation having wavelength between 0.01 to 10 nm. They are produced…

Q: Number one is meant for the yellow dot. Number two is meant for the green dot. Number three is meant…

A: The atom is constituting a particle of matter, composed of three fundamental particles are present.…

Q: Topic:Fluorescence spectroscopy An introduction explaining: what the technique is about, the basic…

A: Flurosense Is a spectrochemical technique in which molecules are excited by radiation of certain…

Q: Based on the PBS program Fabric of the Cosmos: Quantum Leap, quantum mechanics provides the…

A: Based on PBS program fabric of the cosmos : Quantum leap, quantum mechanics provides the foundation…

Q: label the type of telescope shown below

A: A telescope is defined a tool that is used by the astronomers to see the objects that are faraway.

Q: How the lead apron works against x-rays of a dental x-ray

A: Lead apron is a protective clothing that works as a radiation protector to shield people from…

Q: Question 20 Which of the following is false? Lemons reflect large amounts of light from the red part…

A: Cones are active at higher light levels and  are capable of color vision.

Q: Give 3 other applications of the Golden number found in Nature

A: Golden ratio, also known as the golden section, golden mean, or divine proportion, in mathematics,…

Q: Is light a matter or not? Why?

A: Matter is defined as anything which possess a definite mass and volume. There are 3 states of…

Q: An excited electron cannot do which of the following? A. Transfer energy to a neighboring photon B.…

A: From the given data we need to find the fate of the excited electron.

Q: What do you think is the reason why fruits/vegetables change color? Is it beneficial or bad for…

A: The reason for color change of fruits and vegetables,the steps for prevention it given below.

Q: List the steps you would take to experimentally determine whether a gold ring is actually pure gold.…

A: Take the ring. Clean and dry it. Further, find the weight of the ring in grams by using precision…

Q: Which color of the rainbow has the highest energy?

A: Rainbow colors are : Violet, Indigo, Blue, green, Yellow, Orange, Red

Q: picture. Classify it with the given words. light producer / light reflector Moon: Cat: Flashlight:…

A:

Q: Use the models to answer the following question. Model A Model B Which is the correct model and…

A: Given  Model A and Model B diagram is given  To find : Correct statement = ?

Q: Which has the shorter wavelength, light with photons of 4.0x10-19J or light with photons of…

A: In this question, we will use formula  E = hf = hc/λ where h - planck constant c- speed of light f-…

Q: 40 Li ions were formed. How many electrons were removed?

A: Given, number of Li ion formed = 40 Li ion number of electrons were removed = ? Note:  Li ➝ Li+ + e-…

Q: What is the most abundant peak called?

A: The most abundant peak has to be defined.

Q: How can the color of light be determined? Describe the difference between red light and blue light?

A: Light is wave known as electromagnetic radiation. Electromagnetic radiation could differ in terms…

Q: in

A: Zinc react with HCl to produce zinc chloride which is a precipitate hydrogen gas .The original…

Q: 17. An object on the moon would have the same as that object on the earth.

A: We know that, mass does not depend upon the place where it is to be measured, it remains same at…

Q: What is number 4

A: D) 112 L Given that,    Mass of I2 given = 1269 g  Moles of I2 in 1269 g, n = 1269 g/253.8089 g/mol…

Q: Complete this sentence: Atoms emit visible and ultraviolet light Select one: a. as electrons move…

A: 1)  The sentence which explains the given statement             "Atoms emit visible and ultraviolet…

Q: How Do Glow Sticks Glow?

A: The reason for that fluoroscent glow in the glow sticks ,in terms of chemistry can be best explained…

Q: Draw a rainbow and arranged its color from the highest frequency to the lowest frequency.

A: We have to draw a rainbow and arranged its color from the highest frequency to the lowest frequency.

Q: Activity involving the reaction of light to substances producing a chemical change * Your answer

A:

Q: Blue light travels at a faster speed than red light true or false

A: Since we know that  E = hc/λ  Where ,  E = energy of Photons  h = Planck's constant  c = speed of…

Q: Why is visible light (by itself) not used to destroy cancerous tumors?

A: A series of electromagnetic radiation with different frequencies and wavelength is known as…

Q: The brightest object in the sky is what? A. The Sun B. The Moon C. Venus D. Mars

A: Of course, the star that appears the brightest to all of us on Earth is the Sun.

Q: scanning electron microscope a.Uses glass lenses to focus the image of the sample b.Scans a proble…

A: A scanning electron microscope is used for the detection of the samples.

Q: The color of the flame is orange the Unknown A? The color of the flame is yellow/orange Unknown B?…

A:

Q: What is the electron configuration of C (carbon)?

A: Electronic configuration: Electronic configuration can be define as the arrangement of electrons…

Q: what is the usage of hinsberg test in daily life?

A: For the Hinsberg test, benzenesulfonyl chloride is used as reagent, Hinsberg's reagent.

Q: What was the surprising result of the Stern-Gerlach experiment? Why did this happen?

A: The Stern–Gerlach experiment demonstrated that the spatial orientation of angular momentum is…