What happens to a white light passes through a prism?

Answers

Answer 1

Answer: When white light passes through a prism, the colour spectrum appears otherwise known as wavelengths. This is caused by the shape of the prism, due to the shape of the prism this bends the light and as a result the white light separates into wavelengths therefore showing colours depending on angle of light.

Related Questions

What 2 pieces of equipment will you use to separate the salt from the water?
What are the 3 main types of mixtures
The Brønsted-Lowry theory defines an acid as a(n)a. hydrogen ion donor. b. hydrogen ion acceptor. c. electron-pair donor. d. electron-pair acceptor.
When dilute sulphuric acid is added to barium chloride solution then what happens in a balanced equation?
Which radioisotope has an atom that emits a particle with a mass number of 0 and a charge of +1?(1) 3H (3) 19Ne(2) 16N (4) 239Pu

2. The process of splitting an atom into two lighter atoms is calledOA. nuclear separation.
OB. nuclear fusion.
C. nuclear fission.
OD nuclear disintegration.

Answers

option 2:OB.nuclear fission

its c................................................................................

Calculate the percentage of yield when 20 grams of sodium chloride solution reacts with an excess amount of silver nitrate solution knowing that 45 grams of silver chloride precipitated

Answers

Percentage % yield = 91.8%

Given:

20 g NaCl

45 g AgCl

To find:

% yield=?

The balanced chemical equation will be:

NaCl + AgNO₃ ⇒ AgCl + NaNO₃

First, we need to calculate moles of NaCl.

$\text{Number of Moles}=\frac{\text{Given Mass}}{\text{Molar Mass}} \n\n\text{Number of Moles}=(20)/(58.44) \n\n\text{Number of Moles}= 0.342 moles$

Then, calculate moles of AgCl from equation:

$\text{mol of AgCl}= 1/1 * \text{ mol NaCl}\n\n\text{mol of AgCl}= 1/1 * 0.342\n\n\text{mol of AgCl}= 0.342$

Mass AgCl(theoretical) :

$\text{Mass of AgCl}= mol * MW\n\n\text{Mass of AgCl}= 0.342 x 143,32 g/mol\n\n\text{Mass of AgCl}= 49.02 g$

Now, calculate for percentage yield.

$\%yield =(actual)/(theoretical) * 100\%\n\n\%yield = (45/49.02) * 100\%\n\n\%yield = 91.8\%$

The percentage yield will be 91.8%.

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%yield = 91.8

Further explanation

Given

20 g NaCl

45 g AgCl

Required

%yield

Solution

Reaction

NaCl + AgNO₃ ⇒ AgCl + NaNO₃

mol NaCl :

= mass : MW

= 20 g : 58,44 g/mol

= 0.342

mol AgCl from equation :

= 1/1 x mol NaCl

= 1/1 x 0.342

= 0.342

Mass AgCl(theoretical) :

= mol x MW

= 0.342 x 143,32 g/mol

= 49.02 g

%yield = (actual/theoretical) x 100%

%yield = (45/49.02) x 100%

%yield = 91.8

How does radioactive isotopes decay?

Answers

they can decay through one of three ways:
alpha decay
beta decay and
gamma decay
ALPHA- particle with two neutrons and two protons is ejected from the nucleus of the radioactive atom. this particle released is called an alpha particle. Only occurs with heavy metals.
BETA- pretty much when a proton is transformed into a neutron, or vise versa. in a beta minus decay, the nuetron decays into a proton and in a beta plus decay, a proton decays into a neutron
GAMMA- the nucleus changes from a high energy state to a low energy state by releasing electromagnetic radiation (photons). the number of protons and neutrons stay the same during this reaction therefore the element is still the same.

The Haber process can be used to produce ammonia (NH3) from hydrogen gas (H2) and nitrogen gas (N2). The balanced equation for this process is shown below. 3H2 N2 Right arrow. 2NH3 The molar mass of NH3 is 17. 03 g/mol. The molar mass of H2 is 2. 0158 g/mol. In a particular reaction, 0. 575 g of NH3 forms. What is the mass, in grams, of H2 that must have reacted, to the correct number of significant figures? 0. 1 0. 102 0. 10209 0. 1021.

Answers

Answer:

Explanation:

We are given that ammonia can be produced from hydrogen gas and nitrogen gas according to the equation:

$\displaystyle 3\text{H$_2$} + \text{N$_2$} \longrightarrow 2\text{NH$_3$}$

We want to determine the mass of hydrogen gas that must have reacted if 0.575 g of NH₃ was produced.

To do so, we can convert from grams of NH₃ to moles of NH₃, moles of NH₃ to moles of H₂, and moles of H₂ to grams of H₂.

We are given that the molar masses of NH₃ and H₂ are 17.03 g/mol and 2.0158 g/mol, respectively.

From the equation, we can see that two moles of NH₃ is produced from every three moles of H₂.

With the initial value, perform dimensional analysis:

$\displaystyle \begin{aligned} 0.575\text{ g NH$_3$}& \cdot \frac{1\text{ mol NH$_3$}}{17.03\text{ g NH$_3$}} \cdot\frac{3\text{ mol H$_2$}}{2\text{ mol NH$_3$}} \cdot \frac{2.0158\text{ g H$_2$}}{1\text{ mol H$_2$}} \n \n & = 0.102\text{ g H$_2$}\end{aligned}$

*Assuming 100% efficiency.

Our final answer should have three significant figures. (The first term has three, the second term has four (the one is exact), the third term is exact, and the fourth term has five. Hence, the product should have only three.)

In conclusion, our answer is B.

Which of the following is not an acid? HCl

H2SO4

HNO3

NaOH

Answers

NaOH is not an acid. It is categorized as a base, specifically a strong base, since it has the capability to accept protons from any proton donor and, when it is in aqueous form, it fully dissociates into ions of sodium and hydroxide.

Any substance that tastes unpleasant in water solution, turns blue litmus paper red, reacts with some metals to release hydrogen, combines with bases to create salts, and stimulates chemical processes is considered an acid. Here among the given options, NaOH is a base. The correct option is D.

Any hydrogen-containing material that has the ability to donate a proton (hydrogen ion) to another chemical is considered an acid. A base is a molecule or ion that can take up an acid's hydrogen ion. Typically, sour tastes help to identify acidic chemicals.

An acid is not NaOH. It is categorized as a base, more specifically a strong base, because it can receive protons from any proton donor and completely dissociates into sodium and hydroxide ions in an aqueous form.

Thus the correct option is D.

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Where would you expect to find water stored in a solid form

Answers

Solid water=Ice

Water stored in a solid form has to be in an environment with temperatures lower than or equal to 32 degrees Fahrenheit.

In your home, a freezer would be a place to find solid water.

In the world, tundra's and arctic regions are places where you could find solid water.

In space solid water can be found in many places, for example, Saturn's rings are comprised mostly of Ice.

You can find water stored as a gas in the atmosphere.

You can find water stored as a solid in the Glaciers.

For PLATO Users

The Cycle And Movements Of Water Link Below

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