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vovangra [49]
3 years ago
5

Question 2 (2 points) Question 2 Unsaved Why does a blue shirt look blue? Choose the BEST explanation. Question 2 options: All w

avelengths of light are absorbed by the shirt. The shirt absorbs the blue wavelengths. The shirt reflects all wavelengths of light. The shirt reflects the blue wavelengths. Question 3 (2 points) Question 3 Unsaved Why is charcoal black? Question 3 options: Charcoal absorbs all wavelengths of light that fall on it. Charcoal reflects black-colored light. Charcoal reflects all wavelengths of light that fall on it. Charcoal has a black-colored pigment. Question 4 (2 points) Question 4 Unsaved Which color has the longest wavelength? Question 4 options: Blue Red Purple Yellow Question 5 (2 points) Question 5 Unsaved Which color has the highest frequency? Question 5 options: Yellow Purple Blue Red Question 6 (2 points) Question 6 Unsaved If white light shines on an object and the red, orange, green, blue, indigo, and violet light is absorbed. What color does your eye see? (hint: see what color is missing) Question 6 options: White Red Purple Yellow Question 7 (2 points) Question 7 Unsaved Which statement is TRUE about white light? Question 7 options: It makes all objects appear white. It can be seen when all colors are absorbed. It contains all of the waves of the electromagnetic spectrum. It contains all of the wavelengths of the visible light spectrum.
Chemistry
1 answer:
Mazyrski [523]3 years ago
5 0
1 . Each color has a different wavelength allowing the eye to see it.2 . The shirt reflects the blue wavelengths.
3 . Charcoal absorbs all wavelengths of light that fall on it4 . Red
5 . Purple 6 . Yellow7 . It contains all of the wavelengths of the visible light spectrum.
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SVETLANKA909090 [29]
Mg3(AsO4)2
Ca(ClO4)2
[S (II) not sure]
[F (I) not sure]
PO₄³

Sorry I don’t know all of them, good luck though! :)
4 0
3 years ago
Question 4 to make a 0.500 m solution, one could take 0.500 moles of solute and add 1.00 l of solvent. enough solvent to make 1.
stealth61 [152]
The answer is enough solvent to make 1.00 L of solution. Since molarity is the number of moles of solute in one liter of solution, adding 0.500 mole solute to one liter solvent might not result to a solution with one liter total volume. Less than one liter solvent is first added to dissolve 0.500 mole solute and then the solution is carefully filled with more solvent until the solution reaches to one liter total volume. Hence, the resulting solution is a 0.500M concentration.
7 0
3 years ago
Read 2 more answers
Please help!!! <br><br> Tysm!! Xxxx
KiRa [710]

1) The amount of PbS produced will be 16.27 grams

2: The amount of Fe produced will be 118.72 grams.

<h3>Stoichiometric problems</h3>

1) The equation is balanced. The mole ratio of lead (II) acetate to the PbS is 1:1.

Mole of 22.11 lead acetate = 22.11/ 325.29 = 0.06797 moles

Equivalent mole of PbS = 0.06797 moles

Mass of PbS = 0.06797 x 239.3 = 16.27 grams

2) from the equation, the mole ratio of Al to Fe is 1:1.

Mole of 57.2 g Al = 57.2/26.98 = 2.12 moles

Equivalent mole of Fe = 2.12 moles

Mass of Fe = 2.12 x 56 = 118.72 grams.

More on stoichiometric problems can be found here: brainly.com/question/14465605

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3 0
2 years ago
Write a formula for the ionic compound that forms from magnesium<br> and oxygen.
Fed [463]

Answer:

MgO

Explanation:

8 0
3 years ago
Silver Nitrate.
stiv31 [10]

Explanation:

Except for the use in the chemistry laboratory , were it is used to synthesize many useful products, silver nitrate is also has biolofical and medical relevance.

Silver nitrate is commonly used for silver staining, for demonstrating the reticular fibers, the proteins and the nucleic acids. It is also used as stain in the scanning electron microscopy.

Silver Nitrate is also used for the bone ulcers as well as the burns and the acute wounds.

8 0
3 years ago
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