Hoàn thành dãy biến hóa sau :
S→SO2→SO3→H2SO4

Answers

Answer 1

Answer:

I don't know what your asking


Related Questions

How many grams of Fe can be produced when 6.10 g of Fe2O3 reacts?

Answers

Tell you what - the more likely scenario is that iron reacts with oxygen to form 6.2g of Fe2O3. That's the rusting of iron; I don't know if you can "un-rust" iron back into pure iron and oxygen. So we'll go with this equation:

4Fe + 3O2 --> 2Fe2O3.

Iron (Fe) is our unknown. Okay, Fe2O3, which is iron(III) oxide, has a given mass of 6.2g, and according to the Periodic Table, it's molar mass, or grams per 1 mole, is 160g/mol (56+56+16+16+16). Do a 1-step molar conversion to get about 0.03875 moles. Apply this to the molar ratio of coefficients in the balanced equation: the ratio is 2:4, or 1:2, so you will double that to 0.0775 moles of iron. Now do a 1-step molar conversion with iron's Atomic Mass to get your grams of iron: 0.0775 moles x 56 grams per mole = 4.34 grams Fe.

As per the balanced reaction, two moles or 319.4 g of Fe₂O₃ gives 4 moles or 223.4 g of Fe. Thus 6.10 g gives 4.22 g of Fe.

What is ferric oxide?

Ferric oxide is an ionic compound formed from iron and oxygen in which iron is in  +3 oxidation state. It is also called iron oxide which decomposes to form molecular oxygen and iron.

The balanced equation giving Fe and oxygen from ferric oxide is written below:

[tex]\rm 2Fe_{2}O_{3} \rightarrow 4Fe + 3O_{2}[/tex].

The molar mass of ferric oxide is 159.7 g/mol. Thus two moles weighs 159.7 × 2 = 319.4 g. Atomic mass of Fe is 55.85 hence, 4 moles is 223.4 g.

As per the balanced reaction, 319.4 g of ferric oxide gives 223.4 g of iron. Thus mass of iron , Fe produced from 6.10 g of ferric oxide is calculated as follows:

mass of Fe = (223.4× 6.10 ) /319.4

                  = 4.226 g

Hence, 4.22 g of Fe will be produced from 6.10 g of Fe₂O₃.

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Convert 7,442 fluid Ounces (oz) to liters (L) rounding to 4 sig figs

Answers

Answer:

220.1 litres

Explanation:

7442 ounces to litres is 220.0892.

Rounding it to 4 significant figures will make it 220.1

Using the periodic table, calculate the number of protons, neutrons, and electrons for Calcium, Argon, and Bromine.(Ca,Ar,Br)

Answers

Answer:

Calcium has 20 protons 26 neutrons and 20 electrons.

argon has 18 protons

22 neutrons and 18 electrons

Bromine has 35 protons 44 neutrons and 35 electonrs

Explanation:

good luck with your homework hope I helped

If an atom has 4 protons and 2 electrons its charge will be:

Answers

Answer:

It's charge will be positive

Explanation:

4>2

please answer this question correctly​

Answers

A) outer core

B)diamond

C)respiratory disease

D)summer

HOPE THIS HELP YOU!!!!

identify the number of bonding pairs and lone pairs of electrons in water.

Answers

Answer:

2 bonding pairs and 2 lone pairs

3.7x10^45 molecules of hydrogen gas = how many grams of hydrogen gas

Answers

Answer:  6.19 × 10²¹ g

Explanation:

Since we weren't given the moles of hydrogen, we have to find it. However, we can do it all in one step if we set up the equation correctly.

Since   Mass = moles × molar mass

&         Moles = #molecules ÷ Avogadro's Number

∴ mass = (#molecules ÷ Avogadro's Number) × molar mass

            =  (3.7 × 10⁴⁵ mcules ÷ (6.022 × 10²³ mcules/mole)) × 1.008 g/mol)

            = 6.19 × 10²¹ g

does the tempurture of the vinegar affect the volcano flow

Answers

The temperature of vinegar does increase the rate of reaction according to the collision theory.

Hope this answers your question!


a motorcycle travels 95.0 km/hr. how many seconds will it take the motorcycle to cover 2.70*10^3 m?

Answers

Answer:
102.35s

Explanation:
Do we currently have km/hr, yet the question is asking for m/s
To convert, we just multiply (95km/1hr) by (1000m/1km) and (1hr/3600s)
This effectively converts km/hr to m/s
This will give us 26.38m/s
Then we must divide (2.7*10^3m) by 26.38m/s
This cancels out the meters and leaves us with seconds:
2700/26.38 = 102.35 seconds

a helium laser emits light with a wavelength of 633nm. what is the frequency of light

Answers

Answer:

 

14 ft 7 inches

step-by-step explanation:

since each model inch corresponds to 25 real inches, 7 model inches will correspond to

7×25" = 175"

at 12" per foot, that is 14 feet, 7 inches.

Explanation:

Pls helpppp me if you cannn

Answers

Answer:

Solution A : calcium hydroxide

Solid B : calcium oxide

Gas C : Hydrogen gas

Explanation:

i) When metals react with water they form hydroxides thus calcium hydroxide

ii) When metals eact with oxygen they form oxides.

iii) Wehn metals react with hydrochloric acid they form a salt and a gas hydrogen.

HOPE THIS HELPED

Someone pls help me I will make you brain

Answers

Answer:

i guess the answer is..true

the ozone in troposphere protects the earth from ultra violet waves that may cause global warming

Why can liquid metal be poured into a block-shaped mold?
Describe what happens to the shape and volume of the liquid
metal.

Answers

Answer:

yes

Explanation:

because

jeffrey is on his skateboard and starts skating down a ramp. ten seconds later he is traveling at 20.0m/s calculate the acceleration

Answers

velocity/time= acceleration

I will brainless who can answer this all pleaseeeeej​

Answers

Answer:

False, True, True, False, False, not sure, True, False, True, True

here u go

convert 230.000 000 000 mi into scientific notation

Answers

Answer:2.3×10^11

Explanation:since scientific notation is as a×10^k with 0<a<=9

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It won’t let me submit my file, how do I do it???
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Answer:

ok i will do the instructions

Explanation:

Answer:

Make sure that its an accepted file. If not try to refresh the page.

The density of a liquid is 6.0g/cm3 , when it fills a container of volume 300cubic centimeters . What is the mass of the liquid in the container?

Answers

Answer:

1800g

Explanation:

b/c d=m/v

m=dv

m=300×6=1800g

The mass of the liquid in the container is equal to 1800 g.

What is the density?

The density of an object can be described as the mass per unit volume of the object. The average density of any substance equals the total mass of the substance divided by its total volume.

The mathematical formula of the density can be expressed as follows:

The density of material = Mass/Volume

Mass = density × Volume

The S.I. unit of the density of any substance is Kg/m³ and it is an intrinsic property. If the size of the substance increases, the mass increases as well but the density of the substance will stay constant.

Give, the density of the liquid, d = 6.0 g/cm³

The volume of the container, V = 300 cm³

The mass of the liquid = 6 ×300 = 1800 g

Therefore, the mass of the liquid is equal to 1800 g.

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A superficial dermal erythema that is classified as an exanthem is more commonly known as a(n) __________

Answers

Answer:

ITS CALLED RASH

Explanation:

What gas is dissolved into soft drinks such as soda which causes them to bubble when opened? A. Carbon dioxide B. Ethylene C. Hydrogen D. Argon​

Answers

Answer: A, Carbon Dioxide

Explanation:

A. Soda water, like other carbonated beverages, contains carbon dioxide that has dissolved under pressure. When the pressure is released by opening the soda container, the liquid cannot hold as much carbon dioxide, so the excess bubbles out of the solution.

Answer:

A. carbon dioxide

Explanation:

the answer is A

the fact that matter is not created or destroyed in any chemical or physical change is called the

Answers

Answer:

Law of Conservation of Mass.

Is that Right?

How many moles of HCl will be produced when 34.56 g of AIC3 are reacted according to this chemical equation​

Answers

Answer:The answer to your question is It will be formed 0.39 moles of H₂

Data

moles of H₂ = ?

moles of HCl = 0.78

moles of Zinc = excess

Balanced chemical reaction

             2 HCl  +  Zn  ⇒  1 H₂  +  ZnCl₂

Process

Explanation:

1.- Use proportions to solve this problem. Consider the coefficients of the balanced reaction.

              2 moles of HCl ---------------------- 1 mol of H₂

              0.78 moles of HCl -----------------  x

              x = (0.78 x 1) / 2

- Simplification

             x = 0.78 / 2

- Result

             x = 0.39 moles of H₂

Compare the types of elements in covalent molecular compounds vs. ionic compounds. explain

Answers

Answer:

Covalent or molecular compounds form when elements share electrons in a covalent bond to form molecules. Molecular compounds are electrically neutral. Ionic compounds are (usually) formed when a metal reacts with a nonmetal (or a polyatomic ion). Covalent compounds are formed when two nonmetals react with each other.

Explanation:

Hope this helps.

The graph of an object's position over time is a horizontal line and y is not equal to 0. What must be true about the object's motion?(1 point)
o The acceleration is constant and non-zero.
o The velocity is constant and non-zero.
o The velocity is zero.
o The acceleration is negative.

Answers

Answer:

The velocity is zero

The interpretation of a position-time graph is required.

The correct option is The velocity is zero.

In a position time graph the y axis denotes the position and x axis denotes the time.

A horizontal line where [tex]y\neq 0[/tex].

This means that the points of the line will be for some value of x, the y value will always be constant.

The slope of a position-time graph will gives the velocity of the object.

Slope is given by

[tex]m=\dfrac{\Delta y}{\Delta x}[/tex]

Here, since the graph is a horizontal line, [tex]\Delta y=0[/tex]

[tex]\Rightarrow m=\dfrac{0}{\Delta x}=0[/tex]

The velocity of the person will be zero.

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According to the kinetic molecular theory, the pressure of a gas increases as
the number of moles of gas molecules increases because —

Answers

Answer:

The volume of the gas therefore becomes large as the temperature of the gas increases, the frequency of collisions with the walls of the container must increase. This, in turn, leads to an increase in the pressure of the gas.

Explanation:

hope it helps.

what non metal is used in the process of vulcanization of rubber

Answers

Answer:

Sulphur

Explanation:

Sulphur evolves the elastics of rubber, therein by heating it to make it...Hot.

6C6H12O6

How many total atoms of oxygen are present in the molecules represented here?

Answers

Answer:

The answer is 36 atoms

Explanation: I took the test and i got 100%

There are 36 oxygen atoms in the representation "6 C₆H₁₂O₆".

We have the expression "6 C₆H₁₂O₆", which represents 6 molecules of C₆H₁₂O₆.

The subscripts are the atomicities of the element, that is, the number of atoms of each element in 1 molecule.

There are 6 atoms of oxygen per molecule of C₆H₁₂O₆. Considering that there are 6 molecules, the total number of atoms of oxygen are:

[tex]6 Molecules \times \frac{6\ O\ atoms}{1Molecule} = 36\ O\ atoms[/tex]

There are 36 oxygen atoms in the representation "6 C₆H₁₂O₆".

Learn more: https://brainly.com/question/16776664

Describe the endogenous pathways of cholesterol metabolism.

Answers

Explanation:

Endogenous pathway for lipid metabolism: VLDL is formed in the liver from triglycerides and cholesterol esters. ... In the liver, LDL is converted into bile acids and secreted into the intestines. In non hepatic tissues, LDL is used in hormone production, cell membrane synthesis, or stored.

5.
The weight of an object is the force of attraction between the object
and the Earth
TRUE
FALSE

Answers

Answer: True

Explanation:

If you’ve seen a baseball game, you’ve probably also experienced the sight of a ball going up and up, until you begin to wonder when it’s going to come down! Yet every time, the ball does fall back to earth. Why? Gravity is an attractive force that exerts a pull between two objects, such as a baseball and the earth.

label the particles, charges, & mass for Elements: 6, 8 & 10?

Answers

Answer:

charges, & mass

Explanation:

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