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qaws [65]
3 years ago
11

How and why do we see colors?

Chemistry
1 answer:
vladimir1956 [14]3 years ago
7 0

Answer:

Light receptors within the eye transmit messages to the brain, which produces the familiar sensations of color. Newton observed that color is not inherent in objects. Rather, the surface of an object reflects some colors and absorbs all the others. We perceive only the reflected colors.

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Question 5 (1 point)
Marianna [84]

Answer:

P=12.16 atm

Explanation:

Using the formula of ideal gas law:

PV = nRT

P= nRT/V

 n= number of moles

 R= Avogadro constant = 0.0821

 T= Temperature in K => ºC + 273.15 K

P= (1.50 moles)(0.0821)( 296.15 K)/ 3.00L

P= 12.15

7 0
3 years ago
Which heats up the fastest? treated glass, aluminum, stainless steel, or copper?
GrogVix [38]

Answer:

stainless steel

Explanation:

stainless steel would heat up fast because it is made of metal

8 0
3 years ago
Which response includes all the following processes that are accompanied by an increase in entropy? 1) 2SO 2(g) + O 2(g) → SO 3(
Mashutka [201]

Answer: Reaction (1) , (3) and (4) are accompanied by an increase in entropy.

Explanation:

Entropy is the measure of randomness or disorder of a system. If a system moves from  an ordered arrangement to a disordered arrangement, the entropy is said to decrease and vice versa.

(1) 2SO_2(g)+O_2(g)\rightarrow SO_3(g)

3 moles of reactant are changing to 1 mole of product , thus the randomness is increasing. Thus the entropy also increases.

2) H_2O(l)\rightarrow H_2O(s)

1 mole of Liquid reactant is changing to 1 mole of solid product , thus the randomness is decreasing. Thus the entropy also decreases.

3) Br_2(l)\rightarrow Br_2(g)

1 mole of Liquid reactant is changing to 1 mole of gaseous product , thus the randomness is increasing. Thus the entropy also increases.

4)  H_2O_2(l)\rightarrow H_2O(l)+\frac{1}{2}O_2(g)

1 mole of Liquid reactant is changing to half mole of gaseous product and 1 mole of liquid product, thus the randomness is increasing. Thus the entropy also increases.

4 0
3 years ago
Carlos is making phosphorus trichloride using the equation below. He uses 15.5 g of phosphorus and collects 50.9 g of phosphorus
melomori [17]

Answer: 35.4 g

2 moles of phosphorous chloride are produced by = 3 moles of  

Thus 0.37 moles of phosphorous chloride are produced by= of  

Mass of  

Thus 35.4 g of chlorine reacted with the phosphorus

5 0
3 years ago
Read 2 more answers
What is the difference between mass number and atomic number?
astra-53 [7]

Answer:

They are found the same way but use different symbols when found.

Explanation:

3 0
3 years ago
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