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3 years ago

How do we see the color violet

Chemistry

2 answers:

valkas [14]3 years ago

8 0

Answer:

Violet is scattered most by Earth's atmosphere, but the blue cones in our eyes aren't as sensitive to it. While our red cones aren't good at seeing blue or violet light, they are a bit more sensitive to violet than our green cones.

Explanation:

Charra [1.4K]3 years ago

7 0

Answer:

I know

Explanation:

with our eyes

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What type of reaction occurs when you combine copper (II) chloride whit sodium hydroxide?

Natali5045456 [20]

In this case a double displacement reaction will take place.

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3 years ago

What relationship does Avogadro's law describe?

LenaWriter [7]

Answer:

D. The relationship between volume and moles

Explanation:

Amedo Avogadro found the relationship between the volume of a gas and the number of molecules contained in the volume.

The law states that "equal volume of all gases at the same temperature and pressure contains the same number of molecules or moles".

Mathematically:

V ∝ n (P,T constant)

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3 years ago

What is the molarity of a solution that contains 0.202 mol KCl in 7.98 L solution?

mr Goodwill [35]

Explanation:

molarity = no. of moles of solute/solution in litres

molarity =0.202/7.98

=0.025 M

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3 years ago

A child has a toy balloon with a volume of 1.80 L. The temperature of the balloon when it was filled was 293 K at a pressure of

Mekhanik [1.2K]

Answer:

2.42L

Explanation:

Given parameters:

V₁ = 1.8L

T₁ = 293K

P₁ = 101.3kPa

P₂ = 67.6kPa

T₂ = 263K

Unknown:

V₂ = ?

Solution:

To solve this problem, we are going to use the combined gas law to find the final volume of the gas. The combined gas law expression combines the equation of Boyle's law, Charles's law and Avogadro's law;

$\frac{P_{1} V_{1} }{T_{1} } = \frac{P_{2} V_{2} }{T_{2} }$

All the units are in the appropriate form. We just substitute and solve for the unknown;

101.3 x 1.8 / 293 = 67.6 x V₂ / 263

V₂ = 2.42L

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3 years ago

Where do animals obtain their chemical energy? I WILL MARK BRAINLEST HELP ASAP!!!

posledela

Answer:

from plants and animals.

6 0

3 years ago

Read 2 more answers