HELP PLEASE!!!!! 10 POINTS
What does the third quantum number (ml) describe?

Answer:

Because the sun is low on the horizon, sunlight passes through more air at sunset and sunrise than during the day, when the sun is higher in the sky. More atmosphere means more molecules to scatter the violet and blue light away from your eyes.

Answer:

Explanation:

The name is of the compound is 3,3,4,4-tetramethylhexane.

Answer: I think it is ‘Genetically diverse’

Explanation:

Answer:  The FitnessGram PACER Test is a multistage aerobic capacity test that progressively gets more difficult as it continues. The test is used to measure a student's aerobic capacity as part of the FitnessGram assessment. Students run back and forth as many times as they can, each lap signaled by a beep sound.

Explanation:

Answer:

Explanation

Let, Wavelength = W,

Given, frequency (f) = 50 Hz, wave velocity (V) = 342 m/s

We know, V = f × W

=> 342 = 50 × W

=> W = 342/50 metre

=> W = 6.84 metre

Answer:

If they are pushing off the wall, it would be B, as they are going faster. If they are slowing down, it would probably be A, gradually getting slower.

Explanation:

Answer:

[tex][C]=0.0221M[/tex]

Explanation:

Hello there!

In this case, according to the given chemical reaction at equilibrium:

[tex]3A\rightleftharpoons 3B+2C[/tex]

It is possible for us to set up the equilibrium expression as shown below:

[tex]Kc=\frac{[B]^3[C]^2}{[A]^3}[/tex]

Whereas Kc, [A] and [B] are known as 0.0091, 0.031M and 0.0823M and it is required to calculate [C]; thus, we solve for it as follows:

[tex][C]^2=\frac{[A]^3Kc}{B]^3}[/tex]

[tex][C]=\sqrt{\frac{(0.031)^3*0.0091}{(0.0823)^3}}[/tex]

[tex][C]=0.0221M[/tex]

Best regards!

Answer:

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The body regulates those levels in an example of homeostasis. When levels decrease, the parathyroid releases hormones. If calcium levels become too high, the thyroid helps out by fixing calcium in the bones and lowering blood calcium levels. The nervous system helps keep homeostasis in breathing patterns.

Answer: chemical element

Explanation: A chemical element is a substance that contains only one type of atom, which is the smallest particle of an element.

Answer:

There would be 3 temperature changes and 2 phase transitions

Explanation:

The temperature of the material would first increase from T0 to Tm (its melting point)- This is one temperature change.

It would the change from solid to liquid at its melting point Tm.- This is one phase transition.

Its temperature would then increase from its melting point Tm to its boiling point Tv -This is another temperature change.

It would then change from liquid to gas at its boiling point Tv - This is another phase transition.

Finally, its temperature would then increase from its boiling point to T(f) - This is the third temperature change.

So, there would be 3 temperature changes and 2 phase transitions

Answer:

1.82

Explanation:

pH is given by the equation

Answer:

The answer was be 1-chloro-1-butyne

Explanation:

In other words the answer is option letter A

You welcome have a nice day.

The name of the given alkyne, CH₃CH₂C = C – CI is 1 chloro 1 butyne.

The correct option is A.

Alkynes are unsaturated hydrocarbons, that have carbon-carbon triple bonds.

Chlorobutyne is colorless and is liquid at room temperature and pressure.

It is polar, but still slightly soluble in water.

Thus, the correct option is A, 1 chloro 1 butyne.

Learn more about 1 chloro 1 butyne.

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Answer:

Chemical symbol:

Aluminum:Al

Berylium: Be

Calcium: Ca

Flourine: F

Neon: Ne

Nitrogen: N

Silicon: Si

Silfur: S

Element name

Ar: Argon

B: Boron

Li: Lithium

Na: Sodium

Fe: Iron

Atomic number

C:6

Fe: 26

Pb: 82

O: 8

N: 7

Zn: 30

Answer:

aluminum- Al

beryllium- Be

calcium- Ca

flourine- F

neon- Ne

nitrogen- N

silicon- Si

sulfur- S

_____________________________________________________

Ar- argon

B- boron

Li- lithium

Na- sodium

Fe- iron

______________________________________________________

C- 6

Fe- 26

Pb- 82

O- 8

N- 7

Zn- 30

Explanation:

Answer:

the answer is 18.75

The mass of water present in the solution is 21.5 g.

Concentration refers to the amount of solute in a solution. There are various ways of expressing concentration such as;

We have the following information;

Percent concentration = 35.0 %

mass of solute = 40.0 g

Mass of water = ?

So;

35 = x/40 + x × 100/1

35 = 100x/40 + x

35(40 + x) = 100x

1400 + 35x = 100x

1400 = 100x - 35x

1400 = 65x

x = 1400/65

x = 21.5 g

Hence the mass of water is 21.5 g.

Learn more about percent concentration: https://brainly.com/question/1600559

Answer:c

Explanation:

Answer:

893 moles

Explanation:

An ideal gas at STP occupies 22.4 liters. Calculating Oxygen as if it were an ideal gas there are . 893 moles of Oxygen in 20.0 liters.

Answer:

Mass of sodium metal is 130.87 gram

Explanation:

The complete reaction is

2 NaN3 --> 2 Na + 3 N2

We know that PV = nRT

n = [tex]\frac{PV}{RT}[/tex]

On substituting the given values, we get

[tex]n = \frac{\frac{99707}{101325}*75 }{0.082 *(273.15 +15)} \\n = 3.02[/tex]moles of N2

Sodium azide's molar mass

3.02 *(2/3) = 2.013 moles

Mass = 2.03 * 65.01 = 130.87 gram

The answer is It is NH3.....

Answer:

0.287 M

Explanation:

Multiply the concentration of each solution by the volume of each (in liters) to get the moles of NaOH in that solution.

0.15 M • 5.4000 L = 0.81 mol NaOH

4.0 M • 0.2012 L = 0.80 mol NaOH

Add the mol of NaOH together to get the total --> 0.81 + 0.80 = 1.61 mol NaOH

Divide by the total volume of solution (5400.0 mL + 201.2 mL = 5,601.2 mL = 5.6012 L)

1.61 mol / 5.6012 L = 0.287 M NaOH

Answer:

Causative/sensitizing factors of pancreatic injury include refluxed bile acids, alcohol, and pH. They largely mediate downstream events such as elevated intracellular Ca2+ via influx through TRPC3 channels and release from IP3 and ryanodine-sensitive Ca2+ stores.

Explanation:

Explanation:

new Mexico and Louisiana

Answer: two two

Explanation:

Answer:

The correct answer is -

1. D. mold

2. A. Cast

3. F. trace fossil

4. C. original material fossils

5. B. fossil record.

Explanation:

Mold is the impression of an organism in a rock that occurs due to the complete dissolving of the organism and only an impression left in sedimentary rocks.

The cast is a fossil copy of an organism in a rock that takes place when water-containing minerals fill the molds and creates a three-dimension copy of the fossil.

Trace fossils are the fossils that are preserved in such a manner that records of biological activity stored only instead of remains of plants or animals.

Storing originals animals or parts of the remaining such as tissue of an organism in natural form is known as original-material fossils.

Fossil records are the fossils ever found or discovered on the earth.

Answer:

There are 0.311 moles of  gas in the tank

Explanation:

Complete question

A 4.00g sample of gas is found to exert a pressure of 1.71 atm when confined in 3.60L container at a temperature of 241 K. Find the number of moles of the gas

Solution

As we know

[tex]PV = nRT[/tex]

where P is the pressure of the gas in atm

V is the volume in liters

n is the number of moles

R is the gas constant = 0.08206 L·atm/K·mol

and T is the temperature in Kelvin

Substituting the given values in above equation, we get -

[tex]1.71 * 3.60 = n * 0.08206 * 241\\n = 0.311[/tex]

There are 0.311 moles of  gas in the tank

Answer:

7.53*10²³ molecules of oxygen will you need.

Explanation:

Avogadro's Number or Avogadro's Constant is called the number of particles that make up a substance (usually atoms or molecules) that can be found in the amount of one mole of said substance. Its value is 6.023*10²³ particles per mole. Avogadro's number applies to any substance.

You can then apply the following rule of three: if by definition of Avogadro's Number 1 mole of oxygen gas contains 6.023*10²³ molecules, 1.25 moles contains how many molecules?

[tex]amount of molecules=\frac{1.25 moles*6.023*10^{23}molecules }{1 mole}[/tex]

amount of molecules= 7.53*10²³

7.53*10²³ molecules of oxygen will you need.

Answer:

Photosynthesis

Explanation:

Photosynthesis uses energy from light to convert water and carbon dioxide molecules into glucose (sugar molecule) and oxygen. The oxygen is released, or “exhaled”, from leaves while the energy contained within glucose molecules is used throughout the plant for growth, flower formation, and fruit development.

Answer:

Products

Explanation:

Answer:

Explanation:

Maintaining a healthy, perennial plant cover.

Mulching.

Planting a cover crop – such as winter rye in vegetable gardens. ...

Placing crushed stone, wood chips, and other similar materials in heavily used areas where vegetation is hard to establish and maintain.???