Please answer all of the examples below!

Answer:

Electronic configurations describe each electron as moving independently in an orbital, in an average field created by all other orbitals.

Explanation:

Answer:

D.make a plant cell rigid

Explanation:

Cell wall is present only in a plant cell. Option A, B & C are functions of the cell membrane not the cell wall.

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D.make a plant cell rigid

Answer:

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Answer:

P1 =4 atm

T1= 20°C

P2=1 atm

T2=?

According to Gay-Lussac's Law or Third Gas Law,

P1T2=P2T1

4×T2=1×20

T2= 20/4

T2= 5°C

Answer At 5°C temperature does a gas at 1.00 atm !

Answer:

a. 5 8/100 is equivalent to $ 5.08.

Explanation:

i hope this helps :)

Answer:

D. Black Holes

Explanation:

Black holes are large objects that form dense gravity wells in space. Their gravitational pull is so strong that even light cannot escape it. 

Large objects that form dense gravity wells in space are stars and blackholes. The correct answer is option B and D.

Gravity: it is referred to as force of attraction experienced by a body having mass, towards the center of Earth.

Both stars and black holes are massive objects that exert a significant gravitational force due to their mass. They create what is known as a gravity well, which is a region of space where the gravitational pull is strong enough to affect the motion of nearby objects.

On the other hand, Galaxies and nebulae, are not individual objects with sufficient mass to form dense gravity wells. Galaxies consist of a collection of stars, gas, and dust, and while they have a collective gravitational influence, it is not concentrated in a single massive object like a star or black hole. Whereas, Nebulae are interstellar clouds of gas and dust, which do not possess the mass required to create significant gravity wells.

Therefore, the correct options from the given list that form dense gravity wells in space are B. Star and D. Black holes.

Learn more about Gravity here:

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Explanation:

The higher the wavelength, the lower its frequency and energy

Answer:

As frequency increases wavelength decreases in size

Explanation:

The wavelength of the wave is inversely proportional to the frequency of the wave as the speed of the wave remains constant.

                                v = fλ ( v - speed, f - frequency,  -wavelength)

                                 [tex]\frac{v}{\lambda}[/tex] = f

Therefore at constant speed:

                                 f ∝ [tex]\frac{1}{\lambda}[/tex] (inversely proportional)

Answer:

In chemistry, an ionic compound is a chemical compound composed of ions held together by electrostatic forces termed ionic bonding

Answer:

An Ionic compounds are compounds consisting of ions also held together by the attractive forces among the oppositely charged ions.

Explanation:

For example :

NaHCO3, sodium bicarbonate (baking soda; used in cooking)

NaCl, sodium chloride (common/ordinary salt)

Answer:

triangles

Explanation:

Answer:

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Option A. Boiling point.

Explanation:

When you heat the water, the water gets converts into gaseous form.

As you know that water is in liquid form. So, when you heat the water, the water molecules absorbs the heat and get dispersed from one another molecules. i.e., molecules go far from the other molecules as they absorbed heat.

The term describes the temperature at which a substance can change state from a liquid to a gas, is boiling point. Therefore, option A is correct.

The temperature at which a liquid's vapor pressure equals the pressure around it and the liquid transforms into a vapor is known as the boiling point of a substance. A liquid's boiling point varies depending on the atmospheric pressure in the area.

Boiling point and saturation temperature are synonyms. Sometimes the measurement's pressure serves as a definition for the boiling point. The International Union of Pure and Applied Chemistry was founded in 1982.

The boiling point of a sample can be calculated using a number of techniques, such as distillation, reflux, and a Thiele tube. The simplest approach makes use of a Thiele tube and has the benefit of requiring less than 0.5mL of substance.

Thus, option A is correct.

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Answer:

1162m/s is the faster speed

Explanation:

The speed is a physical property defined as the distance travelled of an object in determined amount of time.

A speed of 316m/s means the object is travelling 316 meters per second transcurred.

In the same way, the speed of 1162m/s means the object is travelling 1162m per second.

As the second object is travelling more distance per second than the first,

Answer:

Solution given:

22.4 liter of O2=1 mole of O2

694litre of O2=[tex] \frac{1}{22.4} \times 694[/tex]

=30.98or 31 mole of O2

A) HCO3- , carbonic acic

Answer:

Do it if you feel like its your chance! Good luck!

Explanation:

Explanation:

Sodium Chloride is neutral whereas hydrochloric acid is an acid. 2. Sodium Chloride is solid while hyrdochloric acid is a gas.

Answer:

Explanation:

Increasing the temperature increases reaction rates because of the disproportionately large increase in the number of high energy collisions.

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Answer:

That is false

Explanation:

Just because it moves faster doesn't mean that it can carry and bigger load.

Answer:

False

Explanation:

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Answer:

Explanation:

Equilibrium is achieved in a chemical reaction when there is a steady state with no change in concentrations.

So the answer is "When the concentrations of reactants and products are constant."

Answer:

Explanation:

The new pressure can be found by using the formula for Boyle's law which is

[tex]P_1V_1 = P_2V_2[/tex]

Since we're finding the new pressure

[tex]P_2 = \frac{P_1V_1}{V_2} \\[/tex]

We have

[tex]P_2 = \frac{6.4 \times 0.87}{20.5} = \frac{5.568}{20.5} \\ = 0.2716.... \\ \\ = 0.27 \: \: \: atm[/tex]

But

1 atm = 14.7 psi

Then 0.27 atm =

[tex] \frac{14.7 \times 0.27}{1} = 3.969 \\ [/tex]

We have the final answer as

Hope this helps you

Answer:

3.97 psi

Explanation:

Answer:

Commensalism is a symbiotic relationship in which one species benefits while the other species is not affected. One species typically uses the other for a purpose other than food.

Explanation:

Because a large amount of energy is required to break the strong inter-ionic attraction.

CaS => Ca2+ & S2-

Answer:

the forces i think

Explanation:

The absorption of a free moving neutron by the atoms nucleus

(A P E X)

Answer:

Mechanical Sound Waves

A mechanical wave is a wave that depends on the oscillation of matter, meaning that it transfers energy through a medium to propagate. These waves require an initial energy input that then travels through the medium until the initial energy is effectively transferred. Examples of mechanical waves in nature include water waves, sound waves, seismic waves and internal water waves, which occur due to density differences in a body of water. There are three types of mechanical waves: transverse waves, longitudinal waves, and surface waves.

Why is sound a mechanical wave? Sound waves move through air by displacing air particles in a chain reaction. As one particle is displaced from its equilibrium position, it pushes or pulls on neighboring molecules, causing them to be displaced from their equilibrium. As particles continue to displace one another with mechanical vibrations, the disturbance is transported throughout the medium. These particle-to-particle, mechanical vibrations of sound conductance qualify sound waves as mechanical waves. Sound energy, or energy associated with the vibrations created by a vibrating source, requires a medium to travel, which makes sound energy a mechanical wave.

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Answer:

5:2

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Answer:

The ratio by mass for calcium and oxygen in a calcium oxide is given by 5:2

hope it helps

Answer:

The raindrops of mass 0.050g has 0.0028 moles of water

Answer:

v = 1.5 m/s

Explanation:

Given that,

Distance covered by a person, d = 105 m

Time taken, t = 70 s

We need to find the average speed of the person. We know that the average speed is given by :

[tex]v=\dfrac{d}{t}\\\\v=\dfrac{105\ m}{70\ s}\\\\v=1.5\ m/s[/tex]

So, the average speed of the person is equal to 1.5 m/s.