CrO42-+2H+=Cr2O7^2-+H2O
A student add sodium hydroxide (NaOH) to the solution equilibrium. In 1 to 2 sentences describe and explain any changes to the solution that the student will observe.

Answer:

Cells have many structures inside of them called organelles. These organelles are like the organs in a human and they help the cell stay alive. ... Mitochondria are the power house of the cell and provide the cell with energy. Both plant and animal cells have mitochondria.

Explanation:

Answer:

It had changed by .001 liters because of the way that cold air can't evaporate more than .5 liters of air

Explanation:

Explanation:

[tex]19.87mol \times \frac{22.4lit}{1mol} = 445.088lit \: [/tex]

Answer:

3845

Explanation:

Answer:

it is 3845 grams

Explanation:

Answer:

Answer in picture

Explanation:

Answer:

A 1.33

Explanation:

Refractive index = (speed of light in vacuum)/(speed of light in another medium)

Refractive index = (300000000)/(225000000)

Refractive index = 1.33

Answer:

k = -0.006.

T₀ = 15 °C

Explanation:

Hola.

En este caso, considerando la gráfica mostrada en el archivo adjunto, podemos evidenciar que los datos dados se comportan de manera lineal, por lo que basado en la ecuación, T=k*h+To, podemos calcular la pendiente que basicamente es igual a k, tomando dos puntos en la gráfica:

[tex]k=\frac{12-13.5}{750-500}=-0.0006[/tex]

Además, el valor de la temperatura inicial se puede extraer de la tabla, dado que esta es cuando la altura es 0 m, es decir 15 °C.

¡Saludos!

Answer:

Photons of light from source X carry more energy than photons of light from source Y

Explanation:

According to Einstein's photoelectric equation, the kinetic energy of the emitted photoelectron depends on the energy of the incident photon and the work function of the metal.

For photoelectrons to be ejected from a metal surface, the energy of incident photon must be greater than the work function of the metal. If not, no electron is ejected.

The energy of photon X must be greater than the work function of the metal while the energy of photon Y is less than the work function of the metal. This brings us to the conclusion that the energy of photon X must be greater than that of photon Y.

Answer:

c

Explanation:

i got it right on edg2020

Answer:

Nuclear fusion, Conduction, Conduction, Radiation.

The Sun produces energy deep inside its core by fusing hydrogen atoms together to form heavier ones through nuclear fusion. Conduction and convection are used to move heat from the core to the surface.

Radiation is the electromagnetic transmission of heat energy through space. The majority of the electromagnetic radiation that the sun emits and that reaches the Earth is invisible. Only a tiny fraction is visible light. Light consists of waves of various frequencies.

When two objects with different surface temperatures come in contact with one another, conduction happens. Up until they reach the same temperature, heat moves from the warmer to the cooler object. Heat moves through a substance by conduction when molecules collide.

Thus the correct order is Nuclear fusion, Conduction, Conduction, and Radiation.

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Answer:

The reaction rate would decrease

Explanation:

What would happen to the rate of the forward reaction if the concentration of nitrogen were decreased? The reaction rate would decrease . What will happen to the rates of the forward and reverse reactions when a catalyst is added? Both forward and reverse rates increase.

Answer:

Electrons

Explanation:

"Static charges" occur when the number of positive charge and negative charge are not equal. This can be applied to neutral objects by friction, induction and conduction with the help of "electrons."

In friction, the electrons are being transferred between the objects being rubbed together.

In conduction, the electrons are also being transferred from one object to another but not through rubbing; instead through direct contact.

In induction, the electrons are able to react immediately without the need for direct contact.

So, electrons are being utilized in these processes in order to create charge.

Answer:

5.6 x 10²⁴ molecules H₂O

Explanation:

9.3 moles * (6.02214076 x 10²³) = 5.6 x 10²⁴

The Avogadro constant = 6.02214076 x 10²³

This constant is the number of particles (such as atoms, ions, or molecules) in one mole of something.

Answer:

all u have to do is multiply

Answer:

Photolysis and hydrolysis. These are two methods that can be used to break down a compound into simpler substances and smaller units.

Explanation:

Answer:

(1) extraterrestrial impacts, (2) gravitational contraction of the Earth's interior, and (3) the radioactive decay of unstable isotopes.

Explanation:

hope this helps

(1) Extraterrestrial impacts, (2) gravitational contraction of the Earth's interior, and (3) the radioactive decay of unstable isotopes are the sources of heat that are not major contributors to Earth's present-day internal heat.

Heat is the transfer of kinetic energy from one medium or object to another, or from an energy source to a medium or object.

(1) Extraterrestrial impacts, (2) gravitational contraction of the Earth's interior, and (3) the radioactive decay of unstable isotopes are the sources of heat that are not major contributors to Earth's present-day internal heat.

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Answer:

electrons

Explanation:

A redox reaction is one in which oxidation and reduction takes place. in the sense of

oxidation being the loss of electrons and reduction the gain of electrons.

Answer: Carbon,Hydrogen, Chlorine

Explanation:

C=Carbon

H=Hydrogen

Cl=Chlorine

Hope this helps :)

Answer:

refigeration,coolant for nuclear reactants

Explanation:

used for cooling properties since it's boiling point being close to absolute zero.

Answer:Part 1. A chemist reacted 15. 0 liters of F2 gas with NaCl in the laboratory to form Cl2 and NaF. Use the ideal gas law equation to determine the mass of NaCl that reacted with F2 at 280. K and 1. 50 atm.

Explanation:

answer f2 280

Answer:

The bottommost layer in core sample 1 and the topmost layer in core sample 2.

Explanation:

Correct me if im wrong :)

Answer:

When it is cold, it's hard for the molecules and whatever microscopic organisms live there to move around.

When it is hot, the molecules will move quicker due to a chemical reaction with the atoms and other forms of energy increasing with the heat energy. This reaction happens because 2 forms of energy meet.

I hope this helps!

Answer:

The answer of this question is density

Answer:

divide the volume value by 1000

So 3828/1000=3.828

Answer:

the position of hydrogen is controversial in periodic table because hydrogen is the only element with out neutron. it belongs to 1 st group but it is not placed there .Feb 8, 2018

Explanation:

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Answer:

False

Explanation:

It occurs when two waves meet while traveling along the same medium.

Answer:

I'm pretty sure it all of the above

sorry if I'm wrong

Explanation:

Answer:

Rutherford concluded from his metal foil experiments that most of an atom is empty space with a tiny, dense, positively charged nucleus at the center that contains most of the mass of the atom. He also concluded that the electrons orbit the nucleus like the planets orbit the sun

Explanation:

The concentration of S2−in equilibrium with MnS(s) (sp=4. 6×10−14) and 0.083M Mn2+ is mathematically given as

[s^2-]=61.333*10^{-14}M

Generally, the equation for the solubility constant  is mathematically given as

Ksp=[Mn^2+][s^2-]

Therefore

4.6*10^{-14}=0.075*[s^2-]

[s^2-]=4500/0.075*10{-14}

[s^2-]=61.333*10^{-14}M

In conclusion, The concentration of S2−

[s^2-]=61.333*10^{-14}M

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