Use the image below to help you answer this question: Your friend has a red laser pointer. What would happen to the light coming from the laser pointer if it's wavelength were to increase (decrease its frequency).Single choice. (1 Point)

a The light would shift towards the color blue
b The light would no longer be visible to the human eye
c The light would be brighter
d The light would be less bright

Answer:

Following are the responses to the given question:

Explanation:

Let S = solid sandy mass inside the blend

Let G = gold mass in such a blend

We search that percent G by mass

Mixture density = total blend mass / total blend volume = 3.10 g/mL

Mixture sum [tex]= S + G = 1 \ kg = 1000\ g[/tex]

Complete mixing volume = sand volume + gold volume volume

Complete mixing volume [tex]= (\frac{sand\ mass}{sand \ density}) + (\frac{gold\ mass}{gold \ density})[/tex]

Total mixture volume:

[tex]= (\frac{S}{2.84}) + (\frac{G}{19.3})\\\\ = \frac{(19.3 S + 2.84 G)}{54.812\ mL}[/tex]

[tex]\text{Mixture Density} = \frac{\text{mass mixture}}{\text{mixture volume}}[/tex]

[tex]= 3.10 \frac{g}{mL} \\\\ \to 3.10 = \frac{1000 \ g}{ \frac{(19.3 S + 2.84 G)}{ 54.812}}\\\\\to 19.3 S + 2.84 G = 17681[/tex]

When

[tex]S + G = 1000 \ g[/tex]

Solving equation:

[tex]\to 19.3 S + 2.84 G = 17 681\\\\\therefore \ S + G = 1000 \ g\\\\\to 19.3 S + 2.84 G = 17 681\\\\\to -2.84S -2.84 G = -2840\\\\----------------\\\\\to 16.46S = 14 841\\\\\to S = 901.7 g \ SanD[/tex]

When  

[tex]\to S+ G = 1000\\\\\to G = 1000 - 901.7\ g\\\to G = 98.3 g \ GOLD[/tex]

Answer:

Based on the given information, the balanced equation is:

NaCl + AgNO3 = AgCl + NaNO3

Now the moles present in 50 ml of 1M NaCl is,

= 50 * 1/1000 mole = 0.05 mole

And the moles present in 50 ml of 1 M AgNO3 is,

= 50*1/1000 mole = 0.05 mole

Therefore, 0.05 mole of NaCl combines with 0.05 mole of AgNO3 to precipitate 0.05 mole of AgCl.

Now in the second case, to balance the chemical equation, 50 ml of 2 M NaCl combines with 50 ml of 1 M AgNO3. So, the moles present in 50 ml of 2 M NaCl will be,

= 50*2/1000 mole = 0.1 mole

However, the amount of AgNO3 in the second case is not changing, therefore, the amount of AgCl precipitated will be,

= 0.1 - 0.05 = 0.05 mole

Therefore, the amount of precipitate would not change as there is no change in the amount of AgNO3.

The amount of precipitate (NaCl) formed would be 0.05 mole

From the question,

We are to determine the amount of precipitate formed.

First, we will write the balanced chemical equation for the reaction

The balanced chemical equation for the reaction is

NaCl(aq) + AgNO₃(aq) → AgCl(s) + NaNO₃(aq)

This means

1 mole of NaCl reacts with 1 mole of AgNO₃ to produce 1 mole of AgCl and 1 mole of NaNO₃

The precipitate formed is AgCl

Now, we will determine the number of moles of each reactant present

Volume = 50.0 mL = 0.05 L

Concentration = 2.0 M

Using the formula

Number of moles = Concentration × Volume

∴ Number of moles of NaCl present = 2.0 × 0.05

Number of moles of NaCl present = 0.10 mole

Volume = 50.0 mL = 0.05 L

Concentration = 1.0 M

∴ Number of moles of AgNO₃present = 1.0 × 0.05

Number of moles of AgNO₃ present = 0.05 mole

Since

1 mole of NaCl reacts with 1 mole of AgNO₃ to produce 1 mole of AgCl

Then,

0.05 mole of NaCl will react with 0.05 mole of AgNO₃ to produce 0.05 mole of AgCl

∴ The number of moles of NaCl formed is 0.05 mole

Hence, the amount of precipitate (NaCl) formed would be 0.05 mole

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Answer: The complete reaction is as follows.

 [tex]^{14}_{7}N + ^{1}_{0}n \rightarrow ^{14}_{6}C + ^{1}_{1}H[/tex]

Explanation:

When nucleus of two or more atoms are bombarded together then it leads to the formation of new particles with new identity. This type of reaction are called nuclear reaction.

For example, [tex]^{14}_{7}N + ^{1}_{0}n \rightarrow ?C + ^{1}_{1}H[/tex]

Here, nitrogen atom when bombarded with a neutron then it is forming hydrogen and a carbon atom.

As total atomic mass on reactant side is (14 + 1) = 15

So, the atomic mass of carbon formed on product side is (15 - 1) = 14.

The number of protons holded by this carbon atom is (7 - 1) = 6.

Therefore, we can conclude that the complete reaction is as follows.

 [tex]^{14}_{7}N + ^{1}_{0}n \rightarrow ^{14}_{6}C + ^{1}_{1}H[/tex]

Answer:

three structural isomers

Pentane (C5H12) is an organic compound with five carbon atoms. Pentane has three structural isomers that are n-pentane, Iso-pentane (methyl butane) and neopentane (dimethylpropane).

Answer:

Energy retained at consumer level 1 -  units

Energy retained at consumer level 2 -  units

Energy retained at consumer level 3 -  units

Explanation:

Answer:

Please find the attached file for the complete solution:

Explanation:

Answer:

London Dispersion Only

Explanation:

BF3 is non polar and nonpolar molecules only have london disperion forces

Answer:  A covalently bonded molecule in the reaction

[tex]K + Br_{2} \rightarrow KBr[/tex] is [tex]Br_{2}[/tex].

Explanation:

A bond formed by sharing of electrons between two or atoms is called a covalent bond.

For example, bromine is a group 17 element and it has 7 valence electrons. It needs one more electron to complete its octet.

So, when one bromine atom chemically combines with another bromine atom then sharing of electrons takes place which leads to the formation of [tex]Br_{2}[/tex] molecule.

Hence, in the equation [tex]K + Br_{2} \rightarrow KBr[/tex]; [tex]Br_{2}[/tex] reactant is a covalently bonded molecule. A covlent bond is formed by two or more non-metal atoms that chemically combine together.

In a chemical equation, reactants are written on the left side and products are written on right side.

Thus, we can conclude that a covalently bonded molecule in the reaction

[tex]K + Br_{2} \rightarrow KBr[/tex] is [tex]Br_{2}[/tex].

Explanation:

As atmospheric CO2 levels increase due to anthropogenic causes, dissolved CO2 also increases, which in turn decreases the pH of water. When water becomes saturated with CO2, it not only reduces the ocean's pH, but depletes the calcium carbonate sources as well ³⁵

Answer:

The answer is "Option C".

Explanation:

Please find the complete question and its solution in the attached file.

using Hoffman's elimination reaction.

Answer:

C) low vapor pressure

Explanation:

Vapor pressure refers to the pressure created by the vapor produced at a given temperature in a closed container. The pressure created as a result of the production of vapor above the liquid in a closed container. Vapor pressure works as the result of the force of the intermolecular force. When a liquid does evaporates easily it exemplifies that it has low vapor pressure. When the liquid evaporates easily and quickly, it exemplifies that it has high vapor pressure.

Statement that express the property of intermolecular forces that is been exhibited by liquid is C: low vapor pressure.

Therefore, option C is correct.

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Answer:

unsaturated

Explanation:

Answer: If a soda can is opened and left on a scale for 24 hours then the final mass change will decrease.

Explanation:

A soda can is like any other carbonated beverage that contains carbon dioxide dissolved under pressure. So, when a soda can is opened then there will occur a release in pressure due to which excess of carbon dioxide gas moves out of the solution in the form of bubbles.

When soda can is remained open for 24 hours then additional carbon dioxide moves slowly into the air. As a result, there will occur a decrease in final mass change.

Thus, we can conclude that if a soda can is opened and left on a scale for 24 hours then the final mass change will decrease.

Answer:

1,2,3

Explanation:

all if these answers are true except for the last one

Answer:1. Energy and matter are both conserved in stars.

2. Energy in stars causes the fusion of light elements

3.Some matter is converted into matter in stars

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2. Question

What makes up all stars?

A: Plasma

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3. Question

The International Astronomical Union(IAU) defines a constellation by its:

A: Boundary

Explanation:

Answer:

The one on the left has more products than reactants and is endothermic

The one on the right has more reactants than products and is exothermic

Explanation:

Endothermic: Energy is absorbed

Exothermic: Energy is released

Answer:

A? its a tie between a and c but a makes the most sense and has the least amount of exceptions. Also that person who keeps sending those bit/ly links, are they legit or are they fake websites i shouldn't use?

Answer:

pH = 3.5

Explanation:

HCl is a strong acid, so we can use this little formula to find the pH of the solution:

pH = -log[H3O+]

(where H3O+ is the strong acid, HCl)

So we just plug in the molarity for the concentration of the acid...

pH = -log(0.00034)

Solve.

pH = 3.468521083

And apply sig. figs....

pH = 3.5

Answer:

A mixture!

Explanation:

Mixtures are a substance made of combining two or more different kinds of matter :)

Hope this helped!

Answer:

92.96 g

Explanation:

In order to calculate the mass of any number of moles of a given substance, we need to know the substance's molar mass:

We can look for the molar mass of N in any periodic table.

Now we proceed to calculate the mass of 3.32 moles of N₂:

3. Cl₂ + 2KI --> 2KCl + I₂

Cl = 2        Cl = 2

K = 2         K = 2

I = 2           I = 2

4. 2NaCl --> 2Na + Cl₂

Na = 2      Na = 2

Cl = 2       Cl = 2

5. 4Na + O₂ --> 2Na₂O

Na = 4      Na = 4

O = 2        O = 2

6. 2Na + 2HCl --> H₂ + 2NaCl

Na = 2         Na = 2

H = 2           H = 2

Cl = 2          Cl = 2

7. 2K + Cl₂ --> 2KCl

K = 2         K = 2

Cl = 2        Cl = 2

Answer:

C. The lowest whole-number ratio of atoms in a molecule.

Explanation:

Hello there!

In this case, according to the definition of the empirical and the molecular equations, it is possible for us to consider the following example of molecular formula, C4H10, whose empirical formula is C2H5.

In such a way, it is possible for us to say that the empirical formula gives C. The lowest whole-number ratio of atoms in a molecule, as it is the result of the simplification of the molecular formula when possible.

Regards!

Answer:

90% of people marry there 7th grade love. since u have read this, u will be told good news tonight. if u don't pass this on nine comments your worst week starts now this isn't fake. apparently if u copy and paste this on ten comments in the next ten minutes you will have the best day of your life tomorrow. you will either get kissed or asked out in the next 53 minutes someone will say i love you

Answer:

yes

Explanation:

yes

Answer:457

Explanation: