Ask question

Ask question

All categories

4 years ago

13

What happens when light strikes a dark heavy object

1 answer:

Natasha_Volkova [10]4 years ago

8 0

The colour of a substance determines the way it reacts when light rays are incident on it. When light rays strike a dark object, the dark object will absorb all the wavelengths of the light and convert them to heat energy, thereby increasing its temperature. Lighter colors do not absorb all the wavelengths of light, they reflected some depending on the type of color.

You might be interested in

Can the crabs see the plankton they eat near the ocean floor?

cricket20 [7]

Answer:

Explanation:

The crabs cannot see the plankton they eat near the ocean floor. For the crabs to see the plankton, some color of visible light would need to reach the plankton so that it can be reflected into the crabs' eyes.

4 0

3 years ago

Read 2 more answers

Estimate the solubility of CaCO3

Fudgin [204]

Answer:

CaCO3(s) <==> Ca2+(aq) + CO3 2-(aq)

Let X = the amount of CaCO3 dissolved in Na2CO3 or the amount of each ions formed i.e. Ca2+ and CO3 2–. Then, put this into the formula :

Ksp = [Ca2+] [CO3 2-]

5 × 10^-9 = [X]*[X]

X^2 = 5 × 10^-9

X = √5 × 10^-9

X = 7.07 x 10^-5 mole/L

So, the amount of CaCO3 dissolved in 0.1M Na2CO3 or the amount of Ca2+ and CO3 2- ions produced is 7.07 x 10^-5 mole/L

4 0

3 years ago

The amount of I−3(aq) in a solution can be determined by titration with a solution containing a known concentration of S2O2−3(aq

Pavlova-9 [17]

Answer : The molarity of $I_3^-$ in the solution is, 0.128 M

Explanation :

The given balanced chemical reaction is,

$2S_2O_2^{-3}(aq)+I_3(aq)\rightarrow S_4O_2^{-6}(aq)+3I^-(aq)$

First we have to calculate the moles of $Na_2S_2O_3$ .

$\text{Moles of }Na_2S_2O_3=\text{Molarity of }Na_2S_2O_3\times \text{Volume of solution}$

$\text{Moles of }Na_2S_2O_3=0.260mole/L\times 0.0296L=0.007696mole$

Conversion used : (1 L = 1000 ml)

Now we have to calculate the moles of $I_3^-$ .

From the balanced chemical reaction, we conclude that

As, 2 moles of $S_2O_2^{-3}$ react with 1 mole of $I_3^-$

So, 0.007696 moles of $S_2O_2^{-3}$ react with $\frac{0.007696}{2}=0.003848$ mole of $I_3^-$

The moles of $I_3^-$ = 0.003848 mole

Now we have to calculate the molarity of $I_3^-$ .

$\text{Molarity of }I_3^-=\frac{\text{Moles of }I_3^-}{\text{Volume of solution}}$

Now put all the given values in this formula, we get:

$\text{Molarity of }I_3^-=\frac{0.003848mole}{0.03L}=0.128mole/L=0.128M$

Therefore, the molarity of $I_3^-$ in the solution is, 0.128 M

8 0

3 years ago

Which letter pattern best represents seafloor spreading? (Hint: Letter "f" represents the mid-

labwork [276]

Answer:

anna ou

Explanation:

6 0

3 years ago

Read 2 more answers

What are some global problems that material scientists are working to fix

a_sh-v [17]

Global warming, the hole inside the atmosphere in Oklahoma , california .

4 0

3 years ago