Calculate the maximum mass of aluminium which can be extracted from 10 kg of
aluminium oxide

2AlO3+ 3C ----->4Al + 3CO2

Answers

Answer 1

Answer:

Hrishikesh. bshjsjbd. jwjjja


Related Questions

the melting point of gallium metal is 29.76°C If a piece of gallium is sliced into three parts, the melting point will be:

A. higher than 29.76°C
B. 29.76°C
C. lower than 29.76°C

Answers

Answer:  B. 29.76°C

Explanation:

The melting point is known as an intensive property of matter. This means the melting point is not affected by the amount of mass. Whether the metal is really large or small, the melting point of gallium (Ga) is roughly 29.76 degrees Celsius.

If the electronnegavity difference between elements A and X is 0.8, the bond in AX will most likely be what?

Answers

Answer:

Polar covalent bond

Explanation:

When the electronegativity difference between two elements A and X is 0.8, the bond AX formed will most likely be a polar covalent bond.

A polar covalent bond is one whose electronegativity difference is between 0.5 and 2.1.

In such a bond type, we have heteronuclear species with one of the species having a higher electronegativity value.

When electronegativity difference is less than 0.5, a non-polar covalent bond forms. If the value is greater than 2.1, an ionic bond will form.

Which statement below is not part of the cell theory? a. All living things have many cells b All living things are made of one or more cells c cells are the basic unit of structure and function in living things d All cells come from other cells

Answers

D I believe is the answer

Answer:

c

Explanation:

I know it's c because I have done the test

does anyone have the 2020 paper for chemistry

Answers

Answer:

Erm.......... can you clarify what "paper", you just said "paper" there's a lot.

Explanation:

formulas for volume​

Answers

Shape Formula Variables

Cube V=s3 s is the length of the side.

Right Rectangular Prism V=LWH L is the length, W is the width and H is the height.

Prism or Cylinder V=Ah A is the area of the base, h is the height.

Baldor's Value Formula was created more than 25 years ago to simply illustrate the equal importance of four factors that shape our customers' perception of value. Quality and Service are factors we strive to increase in order to improve perceived Value.

plzz help guyss I'm so confused
Starting from rest, you reach a speed of 20 m/s in 4 seconds. What is your acceleration? ​

Answers

5 because A=v/t 20/4=5

What does it mean when you ask your dad whats he going to do with the chikens and hes says feed them some fried chiken?

Answers

Answer:

It means your dad is making those chickens cannibal's.......

Explanation:

Answer:

Hes gonna cook those chickens.....

ALL I ask is you answer correctly I'm having a bad day ! :(

Jimmy Fallon was playing with acids and bases and was trying to determine how many grams of Copper (I) Hydroxide he would need to create 48.76 grams of Copper (I) Phosphate when reacting it with Phosphoric Acid.

Answers

Answer:

i have no clue whats going on here but imma act like i do.....

Explanation:

What makes a pure substance different from a heterogeneous mixture? (4 points)

Answers

Explanation:

Pure substances are elements and compounds. These substances have the following properties:

All parts are the same throughout which implies that they are homogeneous. They have a definite composition. They  cannot be easily separated or broken down into simpler substances by physical meansSeparation by physical means is not possible They have unique sets of physical properties.

Heterogeneous mixtures have completely opposite properties as the pure substances as given above.

what’s the answer to this question pls help

Answers

In order of reactivity: magnesium, iron, copper, silver

what physical properties can be used to separate heterogeneous mixture's?

Answers

evaporation, distillation, filtration and chromatography
Hope it help you, have a nice day

what is ionizable hydrogen and why we say it replaceable hydrogen​

Answers

Answer:

only hydrogen atoms that are part of a highly polar covalent bond are ionizable. The hydrogen atom is attracted to the lone pair of electrons in a water molecule when HCl is dissolved in water. The result is that the H−Cl bond breaks, with both bonding electrons remaining with the Cl, forming a chloride ion.

Explanation:

Answer:

In an acid molecule, hydrogen atoms may be substituted by metal atoms.

Explanation:

It is ionizable only to hydrogen atoms that are part of a strongly polar covalent bond. As HCl is dissolved in water, the hydrogen atom is drawn to the lone pair of electrons in a water molecule. The effect is that the H-Cl bond splits, with the Cl remaining with both bonding electrons, forming a chloride ion.

A balloon is filled with helium gas has a volume of 1.0 L at a pressure of 1.0 atm. The
balloon is released and reaches an altitude where the pressure is now 0.4 atm. What is the
new volume of the balloon at this altitude assuming the air temperature has not changed?

Answers

Answer:

2.5 L

Explanation:

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

[tex]P_1V_1 = P_2V_2[/tex]

Since we are finding the new volume

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

From the question we have

[tex]V_2 = \frac{1 \times 1}{0.4} = \frac{1}{0.4} \\ = 2.5[/tex]

We have the final answer as

2.5 L

Hope this helps you

How many different elements are involved in the chemical reaction shown


Ca+2H2O>ca(OH)2+H2

Answers

Explanation:

1.ca

2.H

3.O

.................

Describe what a geologist would observe if she poured acid on the sculpture

Answers

Answer:

A geologist would observe how the material that the sculpture is made out of reacts to the acid.

Which is a statement of the second law of thermodynamics?
O A. Entropy tends to increase in a system.
O B. Molecular motion stops at absolute zero.
O C. The net reaction rate is zero at equilibrium.
O D. Energy cannot be created or destroyed.

Answers

Answer:

A: Entropy tends to increase in a system

Which is a statement of the second law of thermodynamics?

O A. Entropy tends to increase in a system.

O B. Molecular motion stops at absolute zero.

O C. The net reaction rate is zero at equilibrium.

O D. Energy cannot be created or destroyed.

ITS A

Which object has the greatest inertia

Answers

Answer:

D

Explanation:

lighter objects have higher inertia

I think the answer is D :)


What is not a mass of 1 mole of a substance?

Answers

Explanation:

been defined in such a way. It is defined as the numbers of particles in 12 g of 12C. If it were 24 g instead of 12 g, then the weight of 1 mole of substance would equal 2 times the atomic/molecular mass in grams.

A small amount of solid potassium dichromate is added to water and stirred until all of the solid has dissolved and a clear orange liquid is produced. This process may be described as: Group of answer choices the formation of a heterogeneous mixture. dissolution of the molecular compound sublimation. dissolution and dissociation of the ionic compound.

Answers

Answer: dissolution and dissociation of the ionic compound.

Explanation:

Ionic compound is formed by the transfer of electrons.

For formation of a neutral ionic compound, the charges on cation and anion must be balanced. The cation is formed by loss of electrons by metals and anions are formed by gain of electrons by non metals.  

Here potassium metal forms [tex]K^+[/tex] cation and [tex]Cr_2O_7^{2-}[/tex] anion which exchange their oxidation states to form [tex]K_2Cr_2O_7[/tex].

When ionic compound is dissolved in water, it dissociates to its respective ions.The ions form bonds with oppositely charged ions of water molecules and thus get dissolved in water called as dissolution.

When 29 grams of sodium metal (Na) react with 49 grams of chlorine gas (C1), solid
sodium chloride (NaCl) is created in synthesis reaction. How much excess sodium OR
chlorine is left over?

Answers

Answer:

Explanation:

Na     +     Cl    =      NaCl

23 g        35.5 g  

23 g sodium reacts with 35.5 g of chlorine

29 g of sodium reacts with 35.5 x 29 / 23 g of chlorine

= 44.76 g

So 44.76 g of chlorine reacts and 49 - 44.76 = 4.24 g of chlorine is left over .

All the sodium is used up in the reaction .

As of January 2009, the USA has produced 60,000 metric tons of nuclear waste in 60 yesrs of operating 104 nuclear power plants.

on average how much waste is produced by each plant on a monthly basis?

a. 0.8 tons p. month

b. 83.3 tons p. month

c. 104 tons p. month

d. 866.3 tons p. month

Answers

Answer:  a. 0.8 tons p. month.

Explanation:

Given: Total nuclear waste = 60,000 metric tons

Time take = 60 years = 12 x 60 months   [ 1 year = 12 months]

=  720 months

Total nuclear power plants = 104

Now , Average  waste produced by each plant = [tex]\dfrac{\text{Total waste}}{\text{Time x Number of plants}}[/tex]

[tex]=\dfrac{60000}{720\times104}\approx0.8\text{ tons per month.}[/tex]

Hence, 0.8 tons p. month is produced by each plant.

So, option a. is correct.

Answer:

A on edge 2021

Explanation:

hi can you pls help :)

Answers

Answer:i think it is c, it explodes in water because that’s a chemical reaction

Explanation:

Iodine monochloride (ICl) has a higher boiling point than bromine (Br2) partly because iodine monochloride is a(n)

Answers

Answer: polar molecule.

Explanation:

The boiling point is the temperature at which the vapor pressure of a liquid equals the external pressure surrounding the liquid. The boiling point is dependent on the type of forces present.

Iodine monochloride (ICl) is a polar molecule due to the difference in electronegativities of iodine and chlorine. Thus the molecules are bonded by strong dipole dipole forces. Thus a higher temperature is needed to generate enough vapor pressure.

Bromine [tex](Br_2)[/tex] is a non polar molecule as there is no electronegativity difference between two bromine atoms. The molecules are bonded by weak vanderwaal forces and thus has low boiling point.

Which nuclear equation represents a spontaneous decay?

(1) Rn 21% Po + He

(2) 13 Al + He 18P + on

(3) 235 U + in ~ 13% Ba + Kr + 3n

(4) Li + H → He + He

a. 1

b. 2

C 3

d. 4

Answers

Answer:

a. 1

Explanation:

Radon is a member of group 18. It is an odorless heavy gas, that emanates from materials that contain uranium.

Rn is a decay product of 226-Ra, a member of the uranium decay series. The spontaneous  decay of Rn decay leads to the emission of an alpha particle.

Rn has a half-life of about 3.8 days and its decay product is 218Po.

The nuclear reaction which shows a spontaneous decay is Rn 21% Po + He.

What is spontaneous reaction?

Those reaction in which value of their enthalpy change and change in Gibb's free energy is negative, are spontaneous in nature.

Among all of the given reaction, only first reaction is spontaneous in nature because the given element Radon (Rn) is the product of the decay of uranium series. And in this reaction energy is emitted in the form of alpha particles.

Hence, option (1) is correct.

To know more about spontaneous reaction, visit the below link:
https://brainly.com/question/24376583

Finn is investigating how energy affects objects. He adds energy to an object as shown.



Will the energy he has added cause the object to move?




no, because the light energy from the battery will change its mass


no, because heat energy from the battery will change its temperature


yes, because the battery’s mechanical energy will make the motor run


yes, because the battery’s electrical energy will make its wheels turn

Answers

Answer:

Yes because

Explanation:

Answer:yes because the battery's electrical energy will make the wheels turn.

Step 2: measure the area of the top of the syringe

Answers

I am unsure if this is correct, but this might be the whole section:

The top of the syringe is a circle. You need to compute its area for use in later computations of pressure values. Start by using a ruler to measure the diameter. Estimate to the nearest 0.01 cm. Answer: 3.60 cmDivide by two to find the radius. Maintain significant figures. Answer: 1.80 cmSubstitute the radius into the formula A = πr² to find the area of the top of the syringe. Maintain significant figures. Answer: 10.2 cm²

What is the percent composition of C3H8?

Answers

Answer: Hydrogen - 18.286%( mass present)

              Carbon - 81.714%(mass present)

Explanation:

Mass percentage does not have any unit as numerator and denominator contains the same unit. Therefore, the percent composition of C and H in C[tex]_3[/tex]H[tex]_8[/tex] is 81.8% and 18% respectively.

What is percentage by mass?

Mass percentage represents the the percentage of each element that is making a particular compound.

Mathematically,

Percentage of mass = (component’s mass ÷ total mass) x 100%

Atomic weight of different element of calcium phosphate

C= 12g/mol , H=1g/mol

Total mass of Carbon element in C[tex]_3[/tex]H[tex]_8[/tex] = 12 × 3 = 36

Total mass of hydrogen atom in C[tex]_3[/tex]H[tex]_8[/tex] = 1 × 8 = 8

Total molar mass of  C[tex]_3[/tex]H[tex]_8[/tex] =36 + 8 =44 g/mole

Percentage of carbon in C[tex]_3[/tex]H[tex]_8[/tex] =36/44× 100  =81.8%

Percentage of hydrogen in C[tex]_3[/tex]H[tex]_8[/tex] =(8÷44)×=18%

Therefore, the percent composition of C and H in C[tex]_3[/tex]H[tex]_8[/tex] is 81.8% and 18% respectively.

To learn more about mass percentage, here:

https://brainly.com/question/27429978

#SPJ2

covalent bonds always share electrons equally
A: True
B: False

Answers

FalseAtoms do share electrons when they form covalent bonds, but they do not usually share the electrons equally.

I hope this helped! +*♡

It should be false:)

Use the drop-down menus to complete the statements.


A segment of DNA is called a
.

A complex of nucleic acids and proteins that make up chromosomes is called
.

A structure in the nucleus of an eukaryotic cell that is made up of condensed DNA is called a
.

Answers

A segment of DNA is called a  gene.

A complex of nucleic acids and proteins that make up chromosomes is called  Chromatin

A structure in the nucleus of an eukaryotic cell that is made up of condensed DNA is called a  chromosome.

Answer:

1. Gene

2. Chromatin

3. chromosome

Explanation:

I hope this helps you :)


How many unpaired electrons are present in V3+?​

Answers

Answer: two unpaired

Explanation: In general, electrons are removed from the valence-shell s-orbitals before they are removed from valence d-orbitals when transition metals are ionized. And thus, V3+ is paramagnetic, because it has two unpaired 3d-electrons.

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