How many kg are equal to 325 g?

Cryolite, which also has a relatively low melting point, is used as an electrolyte because, among other things, it dissolves alumina well, conducts electricity, dissociates electrolytically at a higher voltage than alumina, and has a lower density than aluminum at the temperatures needed for the electrolysis.

At 950 °C (1,750 °F), a nearly pure aluminum oxide compound called alumina is dissolved in a molten electrolyte made of aluminum, sodium, and fluorine. This electrolyte is then electrolyzed to produce aluminum metal at the cathode and oxygen gas at the anode.

Learn more about aluminum

https://brainly.com/question/10260456

#SPJ4

setup 1 : to the right

setup 2 : equilibrium

setup 3 : to the left

The reaction quotient (Q) : determine a reaction has reached equilibrium

For reaction :

aA+bB⇔cC+dD

\(\tt Q=\dfrac{C]^c[D]^d}{[A]^a[B]^b}\)

Comparing Q with K( the equilibrium constant) :

K is the product of ions in an equilibrium saturated state  

Q is the product of the ion ions from the reacting substance  

Q <K = solution has not occurred precipitation, the ratio of the products to reactants is less than the ratio at equilibrium. The reaction moved to the right (products)

Q = Ksp = saturated solution, exactly the precipitate will occur, the system at equilibrium

Q> K = sediment solution, the ratio of the products to reactants is greater than the ratio at equilibrium. The reaction moved to the left (reactants)

Keq = 6.16 x 10⁻³

Q for reaction N₂O₄(0) ⇒ 2NO₂(g)

\(\tt Q=\dfrac{[NO_2]^2}{[N_2O_4]}\)

Setup 1 :

\(\tt Q=\dfrac{0.0064^2}{0.098}=0.000418=4.18\times 10^{-4}\)

Q<K⇒The reaction moved to the right (products)

Setup 2 :

\(\tt Q=\dfrac{0.0304^2}{0.15}=0.00616=6.16\times 10^{-3}\)

Q=K⇒the system at equilibrium

Setup 3 :

\(\tt Q=\dfrac{0.230^2}{0.420}=0.126\)

Q>K⇒The reaction moved to the left (reactants)

Answer:

The system will shift toward the products

The system is at equilibrium

The system will shift toward the reactants

Explanation:

This is correct on edg... Good Luck!!!!

Answer:

The answer to this is A. One kind of atom

Explanation:

The other options make no sense whatsoever. But enjoy.

I hope this helped.

Answer:

A. One kind of atom

Explanation:

The phenomenon observed when water seeps into the sand in the riverbed groove can be related to certain steps of the water cycle on Earth's surface.

The water cycle, also known as the hydrological cycle, involves the continuous movement of water between the Earth's surface and the atmosphere. The steps of the water cycle being modeled as the water soaks into the sand are evaporation and infiltration.

Evaporation is the process in which liquid water transforms into water vapor, primarily from the Earth's surface. In the context of the sand riverbed, as water is added to the beginning of the groove and seeps into the sand, a portion of it is likely to evaporate. The heat from the surroundings aids in the conversion of liquid water into water vapor.

Infiltration, on the other hand, refers to the movement of water from the surface into the subsurface or soil. As the water is added to the riverbed groove, it percolates through the sand, gradually infiltrating into the pores and spaces between the sand particles.

This process mimics the natural infiltration of water into the ground during rainfall or when water seeps into the soil near rivers or lakes.

By observing the seepage of water into the sand in the riverbed groove, we can draw a parallel to the water cycle's evaporation and infiltration processes.

This modeling demonstrates how water on the Earth's surface can evaporate into the atmosphere and infiltrate into the ground, replenishing groundwater reserves or feeding into natural drainage systems.

For more such questions on water cycle visit:

https://brainly.com/question/25796102

#SPJ8

Answer:

Friction. Hope I helped.

Answer:

both reactants and products

Explanation:

For a reversible reaction, it is likely that both reactants and products are present at equilibrium.

-TheUnknownScientist

Answer:

Erosion

Explanation:

Abrasion is a process of erosion which occurs when material being transported wears away at a surface over time. It is the process of friction caused by scuffing, scratching, wearing down, marring, and rubbing away of materials. ... Objects transported in waves breaking on coastlines cause abrasion.

Volume of potassium hydroxide that can neutralise 25 cm³ of H2Z acid solution is 5cm³

The neutralization reaction is

H2Z + 2KOH → K2 H2Z + 2H2O

H2Z acid is diprotic acid as it has two ionizable hydrogens.

Thus, 1 mole of Z acid will neutralize 2 moles of KOH.

The number of moles of phosphorus acid present in 0.025 dm³ of 0.5 M aqueous solution is 0.1×

= 0.0025

They will neutralize 2×0.0025mol = 0.005 moles of KOH.

The molarity of KOH solution is 1.0 mol dm³

The volume of KOH solution required will be

1.0 × 0.005 = 0.005 dm³ = 5cm³

Hence, volume of KOH solution required will be 5 cm³.

learn more about neutralization reaction here:

https://brainly.in/question/15104847

#SPJ9

Answer:

flatworm

Explanation:

Answer:

D.) Flatworm

Explanation:

Took the test :)

Among the given noble gases, helium is the noble gas that does not have an octet of electrons in its outermost shell. Neon, argon, and radon all have a complete octet of electrons in their outermost shell, which makes them stable and unreactive.

However, helium only has two electrons in its outermost shell, which is its full capacity. Despite not having an octet, helium is still stable due to its low atomic number and the stability conferred by having a filled 1s orbital. Noble gases, also known as Group 18 or Group VIII-A elements, have full outer electron shells, making them stable and unreactive. The octet rule states that atoms tend to gain, lose, or share electrons to achieve a stable configuration of eight electrons in their outermost shell, except for hydrogen and helium, which aim for two electrons. Among the given noble gases, neon, argon, and radon all have eight electrons in their outermost shell, fulfilling the octet rule.

However, helium is an exception as it only has two electrons in its outermost shell. The first shell of an atom can accommodate a maximum of two electrons, filling the 1s orbital. Despite not having an octet, helium is stable due to its low atomic number and the stability conferred by having a filled 1s orbital. Its stable configuration makes helium unreactive and contributes to its unique chemical properties.

To learn more about noble gas visit: brainly.com/question/31965378

#SPJ11

a. The atomic number is the number of protons in an atom. In this case, the atom has 22 protons, so the atomic number is 22.

b. The number of neutrons can be calculated by subtracting the atomic number (number of protons) from the mass number. In this case, the mass number is given as 48, and the atomic number is 22. Therefore, the number of neutrons is 48 - 22 = 26.

c. Nuclear notation represents the composition of an atom in a compact form. For the given atom with 22 protons and 26 neutrons, the nuclear notation is written as follows:

^48Ti (where the superscript represents the mass number and the subscript represents the atomic number)

d. Hyphen notation is another way to represent the composition of an atom. It includes the element symbol, followed by the mass number, separated by a hyphen. For the given atom, the hyphen notation is:

Titanium-48

Learn more about Titanium-48 here -: brainly.com/question/29793330

#SPJ11

Answer:

mettaliods

Explanation:

It has the both property of metal and non metal so it is called mettaliod.

Answer:

metalloids

Explanation:

they are solid at roomtempreture and alloys with metals.

examples boron,silicon,arsenic,tellurium

When diluting a strong acid with water, it is recommended to add the acid to the water and not the other way around. The statement is true.

This is because adding water to the acid can cause a rapid and exothermic reaction, leading to splattering and potential injury.

When the acid is added to the water, the heat generated is absorbed by the water, reducing the potential for splattering. Additionally, adding the acid to water allows for better mixing and reduces the risk of creating concentrated acid pockets that can be dangerous.

Overall, it is important to follow safe laboratory practices when working with acids and to consult with a trained professional if you are unsure about the proper procedures.

To know more about the dilution, here

brainly.com/question/28392867

#SPJ4

Answer:

By forming an activated complex with lower energy.

Explanation:

When catalyst is added to a reaction , it forms  an activated catalyst which has lower activation energy . So initiation of reaction requires less energy and reaction becomes fast .

Hence third option is correct.

Answer:

electron: orbiting around the nucleus

proton: inside the nucleus

neutron: inside the nucleus

Answer:

the electrons orbit around the nucleus.

the nucleus is where the neutrons and protons are located

hope this helps

Answer:

4k^2-4k+1

Explanation:

Plx give brainlyest

The spontaneity of a reaction is determined by the Gibbs free energy change (∆G), which is a measure of the system's ability to do work.

The equation that links ∆G, ∆H, and ∆S is: ∆G = ∆H - T∆S, where T is the temperature in Kelvin and ∆H and ∆S are the enthalpy and entropy changes, respectively. The signs of ∆H and ∆S determine whether the reaction is exothermic or endothermic and whether it is entropy-driven or enthalpy-driven, respectively.

If ∆G is negative, the reaction is spontaneous, meaning it occurs without the input of energy.The given reaction has a ∆H of 23.25 kJ and a ∆S of 161.26 J/mol∙K.

First, we need to convert the units of ∆S from J/mol∙K to kJ/mol∙K by dividing by 1000.∆S = 161.26 J/mol∙K ÷ 1000 = 0.16126 kJ/mol∙K Substitute the values into the equation to determine the spontaneity of the reaction:

∆G = ∆H - T∆S∆G = (23.25 kJ) - (298 K) x (0.16126 kJ/mol∙K)∆G = 23.25 kJ - 48.02 kJ∆G = -24.77 kJ Since ∆G is negative, the reaction is spontaneous.

To know more about Gibbs free energy refer here: https://brainly.com/question/13795204#

#SPJ11

Answer:

x = -11

Explanation:

x = -2 - 9 = -11

Answer: X= 11

Explanation: Subtract 9  from both sides of the equation

X + 9 = -2

x- 9 - 9 = -2 - 9

X= -11

Option D, NaCl(aq) + AgNO3(aq) → NaNO3(aq) + AgCl(s), is the balanced chemical equation that represents a single-replacement reaction.

What is Replacement Reaction?

In chemistry, a replacement reaction is a type of chemical reaction where one element replaces another in a compound. The general formula for a replacement reaction is:

A + BX → AX + B

where A and B are elements, and X is an anion that can combine with A and B. In this reaction, A replaces B in the compound BX, forming a new compound AX and releasing the element B as a free element. Replacement reactions can be of two types: single replacement reactions and double replacement reactions, depending on whether one or two elements are replaced in the reaction.

In this reaction, sodium (Na) replaces silver (Ag) in the compound AgNO3 to form NaNO3, and silver is released as a free element in the form of AgCl.

Learn more about Replacement Reaction from the given link

https://brainly.com/question/23918356

#SPJ9

Answer:

all places 1 is the answer

Explanation:

please mark me as brainlest

There are approximately 9.03 × 10²³ particles in 1.5 moles of Beryllium (Be).

Beryllium is chemical element with the symbol as Be and atomic number as 4.

Avogadro's number is defined as number of particles (atoms or molecules) in one mole of a substance. It is approximately equal to 6.02 × 10²³.

To find the number of particles in 1.5 moles of Beryllium (Be), we can use  following formula:

Number of particles = moles × Avogadro's number

Number of particles = 1.5 moles × 6.02 × 10²³ particles/mole

Number of particles = 9.03 × 10²³ particles

Therefore, there are approximately 9.03 × 10²³ particles in 1.5 moles of Beryllium (Be).

To know more about Beryllium (Be), refer

https://brainly.com/question/13252061

#SPJ1

Answer:

To be stable an atom will gain, lose, or share electrons to complete the outer most energy level (electron shell). Octet Rule because levels 2 and 3 need 8 electrons to be stable.

A pseudoscience, different of actual science, does not use the scientific method:

The problem with pseudoscience comes at the point 4, as you can't perform experiments to test your hypothesis.

1) Another discipline that could be considered a pseudoscience is, for example, numerology or tarot.

Where both try to explain in some way something, but in neither we can actually perform an experiment to test how true these are.

2) The peer-review is important, as humans are social animals. The opinion of our peers are really important for us, and this also applies for science. As you can see in the last point, you eventually need to present what you found to the scientific community, so eventually, your peers will see and review what you found.

3) A question that can be answered by science is anything that can be studied with an experiment, like:

How much time do you need to boil a cup of water to vaporize it completely?

While a question that can be answered by philosophy would be something that can be studied with a survey, like:

What is the meaning of friendship?

4) Astronomers actually use giant labs, that is called observatories, these are usually located in places with a low population (particularly because these need to have low luminous contamination, so the best ubications are far away from cities). Being in places away from large human populations is really important to recycle in order to not contaminate nor affect the near biodiversity. Safety is more trivial, it is always important, think that astronomers work with really heavy things and are often really far away from the nearest hospital, so having an accident while at work can be really problematic, so they need to take all the safety precautions they can.

If you want to learn more, you can read:

https://brainly.com/question/8483218

Answer:

1.  Another example of pseudoscience could be numerology. You are unable to test or create an experiment based on your hypothesis and still receive factual results.

2. Some investigations have similar or the same outcomes, this is a result of the reproducibility an experiment can prove. When scientists perform an experiment it is important that the experiment is able to be replicated. This is one of the main factors that are important to the scientific method because it proves that your first answer wasn’t a fluke.

3.  The peer-review process is quite important to the community because we often heavily rely on the opinions of others to sway our decisions and final outcomes. For science this is incredibly important, you can have your fellow scientists read over your evaluation for an experiment and make sure that it was performed correctly. Using your summary of the experiment they can also perform it again so that they are sure it was testable.

4.  For something to be answered by science it has to be testable, an example of that would be; “How many days does it take a blue, red, and white rose to die out of the earth?” A philosophical question would be answered in more of a survey; “What is the meaning of life?”

5. Astronomers have their labs far out away from cities so that the light they use is as clean as possible with little human interference. They also recycle frequently to keep the biodiversity in the area they work in continuously moving, with as little effect on the environment as possible. The risk that comes with this is they often use large heavy machinery and work with various substances so if there were to be an accident the nearest hospital would be a great distance.

Explanation:

Hope this helps have a great day!

Answer:

hi

Explanation:

this is my first time on this app so what do i do

During transition shifts, the kinetic energy and movement of particles undergo significant changes. Transition shifts refer to phase transitions, such as melting, freezing, vaporization, condensation, and sublimation, where a substance changes from one phase to another.

As a substance undergoes a transition shift, there are changes in the average kinetic energy and movement of its particles. Let's consider the example of water transitioning from a solid (ice) to a liquid (water) during melting.

During melting, the temperature of the ice increases, imparting energy to the ice particles. As a result, the average kinetic energy of the particles increases. The particles gain enough energy to overcome the intermolecular forces holding them in a fixed arrangement, causing them to break free from their ordered positions.

As the transition progresses, the particles gain enough energy to move more freely and with greater speed. The increased kinetic energy allows the particles to break the bonds between them and move past each other, resulting in the transition from a solid to a liquid state.

Similarly, during other phase transitions, the average kinetic energy and movement of particles change accordingly. For example, during vaporization (transition from liquid to gas), particles gain even more energy, causing them to move rapidly and independently in the gas phase.

Overall, during transition shifts, there is an increase in the average kinetic energy of particles, enabling them to break intermolecular bonds and move more freely as they transition between different phases.

For more such questions on kinetic energy visit;

https://brainly.com/question/7694005

#SPJ8

Li+ has a smaller ionic radius than K+

and smaller molecules have more collisions/interactions between each other

In the case of ion-solvent interactions, the state in which the interac-tions exist is an obvious one; it is the situation in which ions are inside the solvent.

Learn more about Ion-solvent interaction here:

https://brainly.com/question/21307101

#SPJ4