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viva [34]
4 years ago
15

How are refraction and diffraction similar? How are they different? Check all that apply. Refraction and diffraction both involv

e the bending of waves. Refraction and diffraction both involve the bending of waves through a medium. Refraction and diffraction both involve the bending of waves around objects. Refraction involves the bending of waves through a medium, and diffraction involves the bending of waves around an object. Refraction involves the bending of waves around an object, and diffraction involves the bending of waves through a medium.
Chemistry
2 answers:
Zepler [3.9K]4 years ago
6 0

<u>Answer:</u> The correct statements are refraction and diffraction both involve the bending of waves and refraction involves the bending of waves through a medium, and diffraction involves the bending of waves around an object.

<u>Explanation:</u>

Refraction is defined as the phenomena in which when a wave passes through a medium, the speed of wave changes due to the bending of waves in a medium.

Diffraction is defined as the phenomena which involves the bending of waves around an obstacle or an object. This phenomena also occurs when the waves spread out when they pass through a small opening and forms a pattern.

Hence, they are similar because they both involve bending of waves but they are different because in refraction the bending happens when the waves passes through a medium and in diffraction, the bending happens when the waves are around an object.

slavikrds [6]4 years ago
5 0

The answers are:

A. Refraction and diffraction both involve the bending of waves.

D. Refraction involves the bending of waves through a medium, and diffraction involves the bending of waves around an object.

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Which pair of atoms would form a covalent bond ?
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Answer:- Nonmetals can form different types of bonds depending on their partner atoms. Ionic bonds form when a nonmetal and a metal exchange electrons, while covalent bonds form when electrons are shared between two nonmetals.
6 0
3 years ago
What is the name of this compound? ch 3 ch 2 och 2 ch 2 ch 3?
Lady_Fox [76]
The compound of interest is: <span>CH3CH2-O-CH2CH2CH3

Above compound is an ether.

General name of this compound is ethyl propyl ether.

IUPAC name of the compound is methoxy propane. </span>
4 0
3 years ago
Which lists mixtures, in order, from the smallest particles to the largest particles?
Kisachek [45]

Answer:

A. Solution, Colloid, Suspension

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4 0
4 years ago
Enter your answer in the provided box. A person's blood alcohol (C2H5OH) level can be determined by titrating a sample of blood
Annette [7]

<u>Answer:</u> The mass percent of alcohol in blood is 0.183 %

<u>Explanation:</u>

To calculate the moles for given molarity, we use the equation:

\text{Molarity of the solution}=\frac{\text{Moles of solute}}{\text{Volume of solution (in L)}}

Molarity of Cr_2O_7^{2-} solution = 0.05961 M

Volume of solution = 35.46 mL = 0.03546 L   (Conversion factor:  1 L = 1000 mL)

Putting values in above equation, we get:

0.05961M=\frac{\text{Moles of }Cr_2O_7^{2-}}{0.03546L}\\\\\text{Moles of }Cr_2O_7^{2-}=(0.05961mol/L\times 0.03546L)=2.11\times 10^{-3}mol

The given chemical reaction follows:

16H^+(aq.)+2Cr_2O_7^{2-}(aq.)+C_2H_5OH(aq.)\rightarrow 4Cr^{3+}(aq.)+2CO_2(g)+11H_2O(l)

By Stoichiometry of the reaction:

2 moles of dichromate ions react with 1 mole of ethanol.

So, 2.11\times 10^{-3}mol of dichromate ions will react with = \frac{1}{2}\times 2.11\times 10^{-3}=1.06\times 10^{-3}mol

  • To calculate the number of moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}

Moles of ethanol = 1.06\times 10^{-3}mol

Molar mass of ethanol = 46.07 g/mol

Putting values in above equation, we get:

1.06\times 10^{-3}mol=\frac{\text{Mass of ethanol}}{46.07g/mol}\\\\\text{Mass of ethanol}=(1.06\times 10^{-3}mol\times 46.07g/mol)=0.0488g

  • To calculate the mass percent of ethanol in blood, we use the equation:

\text{Mass percent of ethanol}=\frac{\text{Mass of ethanol}}{\text{Mass of blood plasma}}\times 100

Mass of blood plasma = 26.60 g

Mass of ethanol = 0.0488 g

Putting values in above equation, we get:

\text{Mass percent of ethanol}=\frac{0.0488g}{26.60g}\times 100=0.183\%

Hence, the mass percent of alcohol in blood is 0.183 %

5 0
3 years ago
How much charged is required to reduced 2 moles of cr6+ to cr3+
BartSMP [9]

Answer:

6e⁻

Explanation:

Charge in reducing 2 mole of Cr⁶⁺ to Cr³⁺

              Cr⁶⁺   +      xe⁻           →       Cr³⁺

The numbers 6+ and 3+ on the chromium atoms are the oxidation number of the atom.

It shows the number of electrons that has been lost by chromium in an oxidation state.

         Cr⁶⁺ shows that it has lost 6 electrons. When an atom loses electrons, the number of protons becomes more. This makes it positively charged in nature.

      This analogy goes for Cr³⁺

 Therefore, in going from reactants to products, chromium

                                6+      →    3+

 In this kind of expression, the number of atoms must be conserved and the charges too;

                        2Cr⁶⁺   +      xe⁻           →       2Cr³⁺

    given 2 moles of Cr;

               To balance the charge;

               2(6+) + x(-) = 2(3+)

                   12 - x = 6

                          x  = 6

A charge of 6e⁻ is required to reduce 2 mole of Cr⁶⁺ to Cr³⁺

6 0
4 years ago
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