How to balance Kmno4 + H2 So4+ CH3CH2OH-> K2So4+ mnso4 + CH3COOH + H2o by oxidation number method ​

Answer:

B: nuclear energy.

Explanation:

It is emission-free and it saves 2.4 billion tons of carbon emissions per year. Also, the level of hazard of nuclear waste does decrease during the time.

Hope that helps!

Answer:

yeah someone explain

Explanation:

tttttttttt%ttttttt

Answer:

A heat exchanger is device which is designed to transfer heat from one matter to another. In nuclear power plants, these heat exchangers are used to pass heat from primary system to the secondary system. In the process they produce steam from water, they are also called steam generators or pressurized water reactors.

Answer:

Explanation:

The density of a substance can be found by using the formula

[tex]density = \frac{mass}{volume} \\ [/tex]

From the question we have

[tex]density = \frac{140}{6} = \frac{70}{3} \\ = 23.3333...[/tex]

We have the final answer as

Hope this helps you

Answer:

True

Explanation:

Noble gases already have the maximum number of valence electrons they can hold so they are the only stable group

Answer:

The correct option is AlFA

Explanation:

There is no element in the periodic table with the symbol of A. Thus, the compound AlFA is wrong and cannot be a salt made from main group elements. CaO is calcium oxide, Al₂O₃ is aluminium oxide and Ca₃N₂ is calcium nitride - all are evidently made from elements from the main groups of the periodic table (except the AlFA)

Answer:

21.9 g C

Explanation:

Fe₂O₃  +  3 C  ⇒  2 Fe  +  3 CO

This is your chemical equation.  

To find the grams of C required, first convert grams of Fe₂O₃ to moles using the molar mass (159.69 g/mol).  

(97.1 g)/(159.69 g/mol) = 0.608 mol Fe₂O₃

Then, use the mole ratio between Fe₂O₃ and C to convert moles of Fe₂O₃ to moles of C.  You can find the mole ratio by looking at the chemical equation.

(0.608 mol Fe₂O₃) × (3 mol Fe₂O₃/1 mol Fe₂O₃) = 1.824 mol C

You can then convert moles of C to grams using the molar mass (12.01 g/mol).

(1.824 mol) × (12.01 g/mol) = 21.9 g

Answer:

0.03g

Explanation:

Given parameters:

Number of moles of Na = 0.00125mole

Unknown:

Mass in grams of Na = ?

Solution:

To find the mass of this substance, we simply multiply the number of moles with the given molar mass of Na.

 Mass of Na  = number of moles x molar mass

 Mass of Na  = 0.00125 x 23   = 0.03g

Answer: a mixture

Explanation:

Answer:

b

Explanation:

it i b ur welcome

Answer: um sure so 2+4= 24 then 9+7=97

Explanation: bc if you have 2 and you have 4 and if you smash that together you get 24 and 9 and 4 smash that together and you get 94 see so easy

Answer:

mars

Explanation:

just googled it

In addition to Earth, mars  planet has evidence of water on the surface.

Evidence proves that financing results  works Our strong evidence based on the  proves that more lives and real can be changed through access to affordable inventing  for water and sanitation.

Evidence of finding water on Mars first to be known  in 2000, with the appearance of gullies that suggested us about  a liquid origin. Their formation has been hotly in  debated over the ensuing years.

Therefore, addition to Earth, mars  planet has evidence of water on the surface.

Learn more about  evidence of water, here:

https://brainly.com/question/3406927

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Answer:

D. When the concentrations of reactants and products stay the same

Explanation:

[tex]\bigstar[/tex] Dynamic equilibrium is when rate of forward reaction is equal to the

   rate of backward reaction. The concentration of Product and Reactant

   are both same, no net change. Hence Option D is correct.

When the concentrations of reactants and products stay the same at this point a chemical reaction reach dynamic equilibrium.

Hence, Option (D) is correct answer.

A chemical reaction is a process in which chemical bonds between atoms to break and reorganize, to form other new substances.

Dynamic equilibrium occurs in reversible reactions when the number of particles becomes product is equal to number of particles becomes reactant. Chemical equilibrium is dynamic in nature.

Thus from the above conclusion we can say that When the concentrations of reactants and products stay the same at this point a chemical reaction reach dynamic equilibrium.

Hence, Option (D) is correct answer.

Learn more about the Dynamic Equilibrium here: https://brainly.com/question/1233365
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Answer:

D

Explanation:

magnesium always lose 2 electrons

Answer: 116.15 g/mol

Answer:

2.13 atm

Explanation:

Answer: -2.1 x 10^10 N

Explanation:

Answer:

11. physical

19. chemical

10. chemical

12. physical

18. chemical

Explanation:

that should be right, I'm not exactly sure though

Answer:

0.625mol/L

Explanation:

Given parameters:

Number of moles of solute = 5moles

Volume of solvent = 8L

Unknown:

Molarity = ?

Solution:

Molarity is the number of moles of solute per unit volume of solution. It is mathematically expressed as

  Molarity  = [tex]\frac{number of moles }{Volume}[/tex]  

  Molarity  = [tex]\frac{5}{8}[/tex]   = 0.625mol/L

Answer:

2.5 I don't have a explanation

Answer:

A :metallic

B :conducts electricity as a solid

C :covalent

D :does not conduct electricity

Explanation:

Answer:

A = ✔ metallic

B = ✔ conducts electricity as a solid

C = ✔ covalent

D = ✔ does not conduct electricity

Explanation:

edge 2023

Answer:

As electrons are added to the valence shell, an extra proton (i.e fundamental, positively charged nuclear particle) is added to the element's nucleus. As electrons add and Z the atomic number increases 1 by 1, nuclear charge WINS, and electronic radii contract.

Explanation:

Hope this helps you

Crown me as brainliest:)

Answer:

Photoautotrophs

Explanation:

I think you mean "autotroph"

The answer is photoautotrophs. they use sunlight to make their food

Don't forget to rate the answer for others

Answer:

7.3 x 10¹⁴Hz

Explanation:

Given parameters:

Wavelength  = 4.105 x 10⁻⁷m

Unknown:

Frequency of the light  =?

Solution:

The frequency, wavelength and speed of a wave are related using the expression below;

           C = f λ

C is the speed of light = 3 x 10⁸

f is the frequency

λ is the wavelength

      3 x 10⁸ = f x 4.105 x 10⁻⁷

              f  = [tex]\frac{3 x 10^{8} }{4.105 x 10^{-7} }[/tex]   = 7.3 x 10¹⁴Hz

Answer:

7.3 x 10¹⁴Hz

Explanation:

Answer:

Surface pressure: 140 kPa

Surface gravity: 10.44 m/s2 (34.3 ft/s2); 1.065 g

Surface area: : 4.27×1010 km2 (1.65×1010 sq mi

Average orbital speed: 9.68 km/s (6.01 miles/s)

Answer:craters

Explanation:

Answer:

The body-centred cubic (bcc) structure is the most stable form for sodium metal at 298 K (25°C). Under normal conditions, all of the Group 1 (alakali metals) elements are based upon the bcc structure. The closest Na-Na separation is 372 pm implying a sodium metallic radius of 186 pm.

Explanation:

Answer:

Open ended question

Explanation:

Built different :]

Answer:

if an OPEN end question is too challenging respondents will abandon the surevy

Explanation:

Answer:

399.88 g/mol

Explanation:

Iron(III) sulfate, is the chemical compound with the formula Fe₂(SO₄)₃. Usually yellow, it is a salt and soluble in water. A variety of hydrates are also known. Solutions are used in dyeing as a mordant, and as a coagulant for industrial wastes.