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3 years ago

11

Can spectrum colors be mixed

1 answer:

larisa86 [58]3 years ago

8 0

Additive color mixing involves multiple sources of light with different colors in each source. Subtractive color mixing involves a single source of light with different colors absorbing various wavelengths of the color spectrum. Secondary colors of one system serve as the primary colors for the other.

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A chemist dissolves 614. mg of pure hydrochloric acid in enough water to make up 400 mL of solution. Calculate the pH of the sol

tatuchka [14]

Answer:

The pH of the solution is 1.38.

Explanation:

Mass of HCl = 614 mg = 0.614 g

Moles of HCl = $\frac{0.614 g}{36.5 g/ mol}=0.01682 mol$

Concentration of HCl :

$Concentration =\frac{Moles}{\text{Volume of solution in L}}$

On adding 0.01682 moles to 400 mL of water that 0.4 L of water.

$[HCl]=\frac{0.01682 mol}{0.4 L}=0.04205 M$

$HCl(s)+H_2O(l)\rightarrow H_3O^+(aq)+Cl^-(aq)$

1 mole of HCl gives 1 mole of hydronium ion and 1 mole of chloride ions in an aqueous solution.

Then 0.04205 mol/L of HCl will give:

$1\times 0.04205 M =0.04205 mol/L$ of hydronium ions.

$[H_3O^+]=0.04205 M$

$pH=-\log [H_3O^+]$

$pH=-\log [0.04205 M]=1.38$

The pH of the solution is 1.38.

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3 years ago

The first eighteen chemical elements on the periodic table are described below in a series of statements. The first 1S letters o

Aleonysh [2.5K]

Answer: The questions looks unclear

Explanation: Periodic table is a table that contains elements arranged according to their increasing atomic number.

1. D belongs to group 4

E. Belongs to group 7

B belongs to group 1

A belongs to group 8. A noble gas.

R belongs to group 3. K belongs to group 6 C belongs to group 1. H belongs to group 8

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Describe the direction in which each object will accelerate. If the object won’t accelerate, write “no acceleration.” Explain wh

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Answer:

unbalanced force

Explanation:

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Which is a combination of pollutants that mix with water vapor in a city or near large highways and factories?

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3 years ago

What characteristic do all parts of the electromagnetic spectrum share?

Anastasy [175]

Answer:chicken butt I need some points

Explanation:blm ✊✊✊✊ white lives don't

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