What is the chemical formula of Sulphuric Acid:-

Answers

Answer 1

Answer:

sulphuric acid's formula is H²SO⁴

Explanation:

HOPE U WILL FOLLOW


Related Questions

4.1 shows a plant cell. g For Examiner's Use n. C D Fig. 4.1 (i) Name the type of plant cell shown in Fig. 4.1. [1]​

Answers

Answer:

palisade cell due to presence of chloroplasts

If the hydrogen ion concentration, (H+), in a solution is 5.39 x 10-8 M,

what is [OH-]?

A.1.86 x 1021 M

B. 1.86 x 10-7 M

Answers

Answer: 1.86*10^-7M

Explanation:

Answer:

B. 1.86 x 10^-7 M

Explanation:

2500m into kilometer​

Answers

Answer

1 meter = 1000 km

2500 meter = 2500/1000 km

= 2.5 km

Complete combustion of a 0.350 g sample of a compound in a bomb calorimeter releases 14.0 kJ of heat. The bomb
calorimeter has a mass of 1.20 kg and a specific heat of 3.55 J/(g;°C).
If the initial temperature of the calorimeter is 22.5°C, what is its final temperature?
Use 0= mCOAT

Answers

Answer:

i cant understand what you wrote

Explanation:

it's a blank screen

why is unit of pressure called a derived unit ?? 2) how do you measure the volume of milk?

Answers

1. Unit of pressure called a derived unit because it is a combination of base units (kg·m^-1·s^·2).

2. We measure the volume of milk by a instrument called Milk Lactometer.

What are isotopes_???​

Answers

Answer:

Below!

Explanation:

Isotopes are elements with a similar chemical makeup and the same atomic number, but a different atomic mass and number of neutrons . An example of this would be carbon-12, carbon-13, and carbon-14. Three isotopes of the element carbon that have the same 6 protons but have a different neutron count. A simple way to explain isotopes would be to say that they are just different "versions" of an element.

Hope this helps ya! Best of luck <3

state boyl"s law and Charle's law​

Answers

Answer:

hey mateee

Boyle's law :-  the pressure (p) of a given quantity of gas varies inversely with its volume (v) at constant temperature.

Boyle's law can also be formularized as P1V1 = P2V2

Charle's law :-  the volume occupied by a fixed amount of gas is directly proportional to its absolute temperature, if the pressure remains constant.

Charle's law can also be formularized as V1/T1 = V2/T2  

The velocity of an electron that is emitted from a metallic surface by a photon is 3.6E3 km*s^-1. (a) What is the wavelength of the ejected electron? (b) No electrons are emitted from the surface of the metal until the frequency of the radiation reaches 2.50E16 Hz. How much energy is required to remove the electron from the metal surface? (c) What is the wavelength of the radiation that caused photoejection of the electron? (d) What kind of electromagnetic radiation was used?

Answers

(a) The wavelength of the electron is 202.25885 nm

(b) The minimum energy required to remove the electron is 1.6565 × 10⁻¹⁷ J

(c) The wavelength of the causing radiation is approximately 8.84 nm

(d) X-ray

The question parameters are;

The given parameters of the electron are;

The velocity of the electron, v = 3.6 × 10³ km/s

(a) de Broglie wavelength is given as follows;

λ = h/(m·v)

Where;

λ = The wavelength of the wave

h = Planck's constant = 6.626 × 10⁻³⁴ J·s

m = The mass of the electron = 9.1 × 10⁻³¹ kg

Therefore, we get;

λ = 6.626 × 10⁻³⁴/(9.1 × 10⁻³¹ × 3.6 × 10⁶) = 202.25885 × 10⁻⁶

The wavelength, λ, of the electron is 202.25885 × 10⁻⁶ m = 202.25885 nm

(b) The energy required to remove the electron from the metal surface is known as the work function, W₀, which is given by the following formula

W₀ = h·f₀

Where;

f₀ = The threshold frequency

Given that the threshold frequency, f₀ = 2.50 × 10¹⁶ Hz, we have;

W₀ = 6.626 × 10⁻³⁴ J·s × 2.50 × 10¹⁶ Hz = 1.6565 × 10⁻¹⁷ J

The energy required to remove the electron from the metal surface, W₀ = 1.6565 × 10⁻¹⁷ J

(c) The wavelength of the radiation that caused the photoejection of the electron is given as follows;

The energy of the incoming photon, E = W₀ + (1/2)·m·v²

Where;

v = The velocity of the electron, and m = The mass of the electron

Therefore;

E = 1.6565 × 10⁻¹⁷ + (1/2) × 9.1 × 10⁻³¹ kg × (3.6 × 10⁶ m/s)² = 2.24618 × 10⁻¹⁷ J

We have;

E = h·f

∴ f = (2.24618 × 10⁻¹⁷ J)/(6.626 × 10⁻³⁴ J·s) = 3.38994869 × 10¹⁶ Hz

The speed of light, c = 299,792,458 m/s

From the equation for the speed of light, we have;

λ = c/f

∴ λ = (299,792,458 m/s)/(3.38994869 × 10¹⁶ Hz) = 8.84356919 nm ≈ 8.84 nm

The wavelength of the radiation that caused photoejection of the electron, λ[tex]_{causing \ radiation}[/tex] ≈ 8.84 nm

(d) The kind of electromagnetic radiation used which has a wavelength of 8.84 nm is the X-Ray which are electromagnetic radiation having wavelengths that extend from 10 picometers to 10 nanometers.

Learn more about De Broglie wavelength here;

https://brainly.com/question/19131384

WM "Please write the molecular formula for the following by criss cross method. 1. Calcium nitrate 2. Sodium bicarbonate 3. Magnesium nitrite 4. Sodium chloride 5. Hydrogen sulphate 6. Hydrogen chloride T-Aluminium bisulphate 8 Aluminium chloride 9. Aluminium sulphate 10. Hydrogen Nitrate​

Answers

Answer:

1 Ca(NO3)2

Calcium- Ca, Valency 2

Nitrate- NO3, Valency 1

AFTER CRISS CROSS:

Ca1(NO3)2

Ca(NO3)2

2 sodium bicarbonate = NaHCO3

Na = Sodium = (Na)+

HCO3 = bicarbonate = (HCO3) -

Na HCO3

3 magnesium   nitrite

   +2                 _ 1

Mg2(NO3)2

4 Na    Cl

    +1    _1

formula NaCl

5 hydrogen         sulphide  

H                       SO4

+1                       _2

formula H2SO4

6  H    Cl

  +1     _1

HCl

7 AL2     HSO4

  +2        -2

AL2(HSO4)3

8  NH4   Cl

   +1      _1

NH4Cl

9 NH4     SO4

  +1           _2

(NH3)2SO4

10  H   NO3

    +1    _1

HNO3

Calculate the amount of mole(s) of CoF2 required to react with 12.8 moles of HCI.
CoCl2 + 2HF --> CoF2 + 2HCI

Answers

Explanation:

here's the answer to your question

The electron configuration for Helium (He) is shown below.

1s2

Which diagram shows the correct distribution of electrons in the electron shells of a helium atom?

Answers

DOESNT show the pics sorry

1 atm is equal to
O 1 mmHg
• 14.7 mmHg
• 76 mmHg
© 760 mmHg

Answers

Answer:

C 760 mm of hg

because this is the atmospheric pressure at sea level

what are the useful of carbon dioxide?​

Answers

Carbon Dioxide is used by green plants in photosynthesis .Carbon Dioxide is used in fire extinguisher to keep fire away .CARBON Dioxide is used to bake cakes ,Pasteries etc Extra shots:-

Carbon Dioxide is known as CO_2

Answer: Freezing point depression

Answers

Explanation:

freezing point depression is a phenomenon that describes why adding a solute or solvent results in the lowering of the freezing point of the solvent

A drink that contains 4 1/2 ounces of a proof liquor… approximately how many drinks does this beverage contain?

Answers

Complete Question

A guest orders a drink that contains 4 1/2 ounces of 80-proof liquor. Approximately how many drinks does this beverage contain?

Answer:

[tex]No\ of\ drinks =3[/tex]

Explanation:

From the question we are told that:

Ordered drink 4 1/2 ounces of 80-proof liquor

Generally

80-proof liquor contains 40\% alcohol

Giving the drink a standard 1.5 ounce of distilled spirit

Therefore

[tex]No\ of\ drinks =\frac{4.5}{1.5}[/tex]

[tex]No\ of\ drinks =3[/tex]

why does increasing the pressure of a gas increase the reaction rate?
A. it increases the temperature of the gas.
B. it increases the reaction-rate constant.
C. it increases the activation energy.
D. if increases the number of collisions

Answers

Answer:

d it increase the number of collisions

Explanation:

cos collision is a type reaction to other particles

Hope that helps you

Please follow

Option A may be I think!!!!!

What happens when The vapour obtained by dropping conc. H2SO4 in a mixture of KI and MnO2 is treated with hypo solution​

Answers

The reaction between H2SO4 in a mixture of KI and MnO2 yields iodine which reacts with hypo solution​ by titration and the iodine is decolorized.

Iodine is decolorized.

The first reaction stated in the question occurs as follows;

2 KI (aq) + 2 H2SO4 (aq) + MnO2 (s) → MnSO4 (aq) + K2SO4 (aq) + I2 (s) + 2 H2O (l)

The reaction here is the formation of iodine from MnO2 and KI in the presence of dropwise H2SO4.

Hypo is the common name of sodium thio-sulphate or sodium hypo-sulfite.

The equation of the titration reaction is;

2Na2S2O3 + I2→ Na2S4O6 + 2NaI

When this reaction takes place, iodine is decolorized due to its reduction to I^-.

For more information see https://brainly.com/question/16857360

Precipitate WILL form if Silver Nitrate reacts with Iron (III) chloride
-true or false

Answers

Answer:

yes

Explanation:

3Ag(No3) (aq) +FeCl3(aq) -->Fe(NO3)3(aq)+3AgCl(s)

are standard electrode potential and standard hydrogen potential same?​

Answers

Answer:

Potentials of any other electrodes are compared with that of the standard hydrogen electrode at the same temperature. Hydrogen electrode is based on the redox half cell: 2 H+(aq) + 2 e− → H2(g)..

Unknown # 41
Flame Test Color: Lilac
Addition of HCl(aq): NR (No reaction)
Addition of HCl(aq) and BaCl2(aq): NR (No reaction)
Addition of HNO3(aq) and AgNO3(aq): Yellow precipitate

What is the unknown ionic compound molecular formula?

Answers

Answer: Potassium Iodide, KI

Explanation:

Flame test colors:

Li+ = Crimson Red
Na+ = Bright Orange-Yellow
K+ = Lilac

Addition of nitric acid and silver nitrate (HNO3 and AgNO3),

Cl- = White precipitate
Br- = Creamy precipitate
I- = Yellow Precipitate

Hope this helps, brainliest would be appreciated :)

what is meant by reaction element​

Answers

Answer: A reaction element are those elements that can take part in a chemical reaction.

Explanation:

An element is made up of atoms that has the same atomic number. It is the basic material of which all matter is composed of. These elements cannot be broken down further into smaller substances by any chemical reaction. Each element has a unique number of protons in its atom. For example,

--> a hydrogen atom has 1 proton,

--> a Helium atom has 2 protons,

--> a Lithium atom has 3 protons, and

--> a carbon atom has 6 protons.

A chemical reaction on the other hand involves rearrangement of the constituent atoms of reactants to create different substances as products. The bonds between atoms are either broken or created to form new molecules. There are different types of chemical reaction which includes:

--> Decomposition reaction

--> Neutralization reaction

--> single displacement reaction and

--> combustion reaction.

please help me it's urgent​

Answers

C3H8 + 5 O2 = 3CO2 + 4H20

Answer:

a) NaSO4+Bacl2 -> Baso4+2Nacl

b) 4C3H3+15O2 -> 12CO2+6H2O

Explanation:

The atoms at the reactants is equal with the product.

4. what reaction fuels the burning of the sun? A.fission B.fusion C.combustion D.transmutation​

Answers

Answer:

A

Explanation:

Answer:

fusion is what fuels the burning of the sun,it's the combining of light elements into heavier elements to produce energy.the sun produces a large amount of energy by combining very light elements with heavier elements.

I hope this helps

All three states of matter can be ____________ or a solvent in a solution.

Answers

The answer is: solute.

All three states of matter can be “solute” or a solvent in a solution.

Water glass is found in

A. Liquid form at room temperature

B. solid state at room temperature

c. semi liquid form at room temperature

D. None of above​

Answers

Answer:

liquid form

Explanation:

am i right? if right like

Answer:

semi-liquid at room temperature

A car of 1200 kg is moving with a speed of 36 Km/hr. It is stopped by applying brakes withion with in 5 seconds. Calculate the amount of force required to stop the car.

Answers

Answer:

–2400 N

Explanation:

This is a physics question. However, the answer to the question is given below.

We'll begin by converting 36 Km/hr to m/s. This can be obtained as follow:

3.6 Km/hr = 1 m/s

Therefore,

36 Km/hr = 36 Km/hr × 1 m/s / 3.6 km/hr

36 Km/hr = 10 m/s

Thus, 36 Km/hr is equivalent 10 m/s.

Next, we shall determine the acceleration of the car. This can be obtained as follow:

Initial velocity (u) = 10 m/s

Final velocity (v) = 0 m/s

Time (t) = 5 s

Acceleration (a) =?

a = (v – u) / t

a = (0 – 10) / 5

a = – 10 / 5

a = –2 m/s²

Finally, we shall determine the force required to stop the car. This can be obtained as follow:

Mass (m) = 1200 Kg

Acceleration (a) = –2 m/s²

Force (F) =?

F = ma

F = 1200 × –2

F = –2400 N

NOTE: The negative sign indicate that the force is in opposite direction to the motion of the car.

Which statement is true about percent yield

Answers

The options ? We can’t answer your questions without any options or choices

What is the concentration of a solution formed by diluting 25.0 ml of a 3.8M glucose solution to 250ml

Answers

Explanation : số mol glucose 3.8M là :

n = Cm . V = 3.8 . 25 =95

=> Cm khi pha loãng = [tex]\frac{n}{V}[/tex] = [tex]\frac{95}{250}[/tex] = 0.38M

According to molar concentration, the  concentration of a solution formed by diluting 25.0 ml of a 3.8 M glucose solution to 250 ml is 0.38 M.

What is molar concentration?

Molar concentration is defined as a measure by which concentration of chemical substances present in a solution are determined. It is defined in particular reference to solute concentration in a solution . Most commonly used unit for molar concentration is moles/liter.

The molar concentration depends on change in volume of the solution which is mainly due to thermal expansion. Molar concentration is calculated by the formula, molar concentration=mass/ molar mass ×1/volume of solution in liters.

In terms of moles, it's formula is given as molar concentration= number of moles /volume of solution in liters.In case of 2 solutions given it is calculated as M₁V₁=M₂V₂,on substitution, M₂=3.8×25/250=0.38 M.

Thus,  the  concentration of a solution formed by diluting 25.0 ml of a 3.8 M glucose solution to 250 ml is 0.38 M.

Learn more about molar concentration,here:

https://brainly.com/question/21841645

#SPJ5

Plzzz help do your best to answer these questions

Answers

The empirical formula is the simplest formula of a chemical compound.

To find the empirical formula, we take the following steps;

Divide the percentage by mass of each element by its relative atomic mass.Divide the quotient of each by the lowest value obtained instep 1 aboveWrite the result of step 2 above as the subscript following each atom.

1) O - 88.10/16,      H - 11.190/1

  O - 5.5,               H - 11.19

  O - 5.5/5.5,        H - 11.19/5.5

  O -  1,                 H - 2

Empirical formula = OH2

2) C - 41.368/12  H - 8.101/1,   N - 32.162/14,   O - 18.369/16

   C - 3,               H - 8,           N - 2,                  O - 1

   C - 3/1,            H - 8/1          N - 2/1                 O - 1/1

    C - 3,             H - 8,           N - 2,                   O - 1

Empirical formula = C3H8N2O

To obtain the molecular formula where n = number of atoms of each element;

Molecular weight = 174.204 g/mol

[ 3(12) + 8(1) + 2(14) + 16]n = 174

n= 174/88

n = 2 (to the nearest whole number)

Hence, we have;

[C3H8N2O]2

The molecular formula is C6H16N4O2

3)  C - 19.999/12,  H - 6.713/1,   N - 46.646/14,   O - 26.641/16

    C - 2,                H - 7,            N -  3,                 O - 2

    C - 2/2,            H - 7/2,         N -   3/2,             O - 2/2

    C - 1,                H - 4,            N -  2,                  O - 1

Empirical formula - CH4N2O

https://brainly.com/question/1363167

why are structural formulas good for depicting polymers?​

Answers

Answer:

Structur formulas are good for depicting polymers because they explain the properties and structure of the compound which empirical and molecular formulas cannot always represent.

Hope it helps you.

Structural formulas describe the bonds shared by the elemental atom. They are good for depicting polymers as they describe the structure and the properties.

What are polymers?

Polymers are said to be substances that are either natural or synthetic and are macromolecules made of various chains of monomers joined together.

The actual structure and arrangement of the atoms in the polymers are depicted by the structural formula. These were not explainable by the empirical, or molecular formulas.

The atoms involved and the linkage between them are described through the structures and allow us to know the certain properties of the monomers involved. It gives the idea of the chemical and physical properties.

Therefore, the structural formulas depict the polymer.

Learn more about polymer, here:

https://brainly.com/question/17638582

#SPJ2

Other Questions
In ABC,AD is the altitude from A to BC .Angle B is 48,angle C is 52 and BC is 12,8 cm. Determine the length of AD Suppose that one states license plates consist of 1 digit followed by 4 letters followed by 2 digits. How many such plates can the state issue? any of them can do this.(into negative) Confirm that f and g are inverses by showing that f(g(x)) = x and g(f(x)) = x.f(x) = 4/x g(x) = 4/x A particle moves along the x axis. In order to calculate the torque on the particle, you need to know: a. the rotational inertia of the particle b. the velocity of the particle c. the mass of the particle d. the kinetic energy of the particle e. the point about which the torque is to be calculated The program is the set of instructions a computer obeys The diagram shows APQR. Which term describes point S? What Causes #### error? Can someone help me with this What do is mean by environment friendly behaviour? What is 9,000,000 + 8,000 + 90,000,000 + 100 + 2 + 90,000 + 90 in standard form? convert 17.25base base two to base 2 calculate the amount of rupees 31250 at the end of 2 years, compounded annually at 8% per annum. What percent is modeled by the grid?A grid model with 100 squares. 33 squares are shaded.23%30%33%40% 1/ Bng kin thc hc trong tm l hc; hy l gii v phn tch, ti sao trong bi th Trng ca mi ngi ca tc gi L Hng Thin, mi ngi li c mt cm nhn khc nhau v hnh nh Trng . Trng ca mi ngiM bo trng nh li limng rng trng ta con tuyn cong muiB nhn nh ht cau phiChu ci qu chui vng ti ngoi triB nh khi vt Trng SnTrng nh cnh vng chp chn trong my.2/ So snh qu trnh t duy v tng tng. Cho v d minh ha List some Characteristic of fruits. which areas of Earth receive the greatest and the least solar irradiance? 5w = 23 - 3f and 4f = 12 - 2w The cost object in a job order system is the ______ and the cost object in a process costing system is the ______. a. process; specific job b. specific job; process c. process; department d. department; process code bi gi xe siu th th c vit nh no?cho em xin v d vs ?