All categories

3 years ago

Explain whether a red apple is opaque or transparent and why it appears red.

Chemistry

2 answers:

zhannawk [14.2K]3 years ago

6 0

<h2>Answer:</h2>

<em><u>Red apple is opaque. It appear red because it reflects red light</u></em>.

<h3>Explanation:</h3>

An opaque object is an object through which the light rays can not be passed and we can not see from that object while transparent object allows the passage of light.

Hence red apple is unable to pass light, so it is a opaque object.

Light is the combination of seven color rays. Different object absorbs different rays and reflect back other rays. The color of ray they reflect back is the color that we see.

Hence red apple looks red because it absorbs all color except red.

borishaifa [10]3 years ago

5 0

It is opaque because you can't see anything on the other side of the apple.

An apple is red because of the frequency of light shining on it makes it seem that it is red, as it is reflected. It seems it is red because it reflects infrared waves.

You might be interested in

What rule/principle States that electrons fill orbital from lowest energy to highest energy?

Flauer [41]

The aufbau principle, from the German Aufbauprinzip (building-up principle), also called the aufbau rule, states that in the ground state of an atom or ion, electrons fill atomic orbitals of the lowest available energy levels before occupying higher levels.

3 0

3 years ago

Read 2 more answers

If electrons were used in the two slit experiment instead of light, what change would need to be made to the slit spacing in ord

irina [24]

The change that would need to be made to the slit spacing in order to see a diffraction pattern is bending, because in understanding why light behaves like a wave, it is the interference and diffraction were the phenomena distinguish waves from particles but waves are the only one can interfere and diffract while particles do not. The light bends around obstacles or cylinder like waves do, then it is bending which cause and resulted in the single slit diffraction pattern.

5 0

3 years ago

HELP ME OUT MY LOVELY CHEMISTRY CHADS I WILL GIVE YOU A KISS

vitfil [10]

Answer:

300K.

Explanation:

The following data were obtained from the question:

Initial volume (V1) = 300L

Initial temperature (T1) = 200K

Final volume (V2) = 450L

Final temperature (T2) =..?

Since the pressure is constant, the gas is obeying Charles' law.

Using the Charles' law equation, we can obtain the new temperature of the gas as follow:

V1/T1 = V2/T2

300/200 = 450/T2

Cross multiply to express in linear form

300 x T2 = 200 x 450

Divide both side by 300

T2 = (200 x 450)/ 300

T2 = 300K

Therefore, the new temperature of the gas is 300K.

6 0

3 years ago

Which substance is least soluble at 90°C?

jekas [21]

Answer:

NH3

Explanation:

Which salt is least soluble at 90 degrees Celsius

7 0

3 years ago

Write a net ionic equation for the overall reaction that occurs when aqueous solutions of sodium hydroxide and hydrosulfuric aci

Helga [31]

Answer:

2OH-(aq) + 2H+(aq) → 2H2O(l)

Explanation:

Step 1: Data given

sodium hydroxide = NaOH

hydrosulfuric acid = H2S

Step 2: The unbalanced equation

NaOH(aq) + H2S(aq) → Na2S(aq) + H2O(l)

Step 3: Balancing the equation

On the left side we have 1x Na (in NaOH), on the right side we have 2x Na (in Na2S). To balance the amount of Na on both sides, we have to multiply NaOH on the left side by 2.

2NaOH(aq) + H2S(aq) → Na2S(aq) + H2O(l)

On the left side we have 4x H (2x in NaOH and 2x in H2S), on the right side we have 2x H (in H2O). To balance the amount of H on both sides, we have to multiply H2O on the right side by 2. Now the equation is balanced.

2NaOH(aq) + H2S(aq) → Na2S(aq) + 2H2O(l)

Step 4: The net ionic equation

2Na+(aq) + 2OH-(aq) + 2H+(aq) + S^2-(aq) → 2Na+(aq) + S^2-(aq) + 2H2O(l)

The net ionic equation, for which spectator ions are omitted - remember that spectator ions are those ions located on both sides of the equation - will , after canceling those spectator ions in both side, look like this:

2OH-(aq) + 2H+(aq) → 2H2O(l)

8 0

4 years ago