balance chemical reaction of oxalic acid with conc. sulphuric acid​

Answers

Answer 1

Answer:

Explanation: since oxalic acid is a weak acid it wont provide a strong acidic medium. So in order to provide a strong acidic medium dilute sulphuric acid is added.


Related Questions

In an electrochemical cell, equilibrium is the point at which:

A. None of these
B. both electrodes have an equal number of electrons.
C. ion concentrations are no longer changing and the voltage is 0.
D. Equilibrium cannot be reached in a voltaic cell because electrons only flow in one direction.

Answers

Answer:

C. ion concentrations are no longer changing and the voltage is 0.

Explanation:

Electrochemical cells are a device that generates current from redox reactions. In the cell, the equilibrium is reached when the voltage drops to 0. Thus, option C is correct.

What is an electrochemical cell?

An electrochemical cell is a voltaic device that uses chemical energy to generate electrical energy and vice versa. It is of two types electrolytic and galvanic cells depending on the energy it produces.

The electrochemical cell comprises two electrodes namely an anode and cathode, a salt bridge or the porous barrier, and an external connection.

The connection shows the voltage that indicates the equilibrium. When the current flow stops and the voltage reaches zero, the electrochemical cell is said to be in equilibrium.

Therefore, no change in the ionic concentrations and zero voltage indicates equilibrium.

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Convert 15,000 seconds into minutes

Answers

Answer:

250 minutes

Explanation:

60 seconds = 1 minute

15000 secods = 15000 / 60

1500 secons = 250 minutes

define SI unit system​

Answers

Answer:

The SI base units are the standard units of measurement defined by the International System of Units (SI) for the seven base quantities of what is now known as the International System of Quantities: they are notably a basic set from which all other SI units can be derived.

what is plasma in chemistry​

Answers

Explanation:

Plasma is an ionized gas, a distinct fourth state of matter. “Ionized” means that at least one electron is not bound to an atom or molecule, converting the atoms or molecules into positively charged ions.but plasma is present in human body too in a liquid form.

hope this helps you

have a nice day

what is the purest form of iron​

Answers

Wrought iron is the purest form of iron. It contains 0.12 to 0.25% carbon and is thus the purest form of iron.
Wrought iron is the purest form of iron as it contains 0.12- 0.25% of carbon

Energy in the amount of 420 J is added to a 35 g sample of water at a temperature of 10°C. What is the final temperature of the water?

Answers

The final temperature of the water, T2 = 38.57°C

Temperature can be defined as a measure of the degree of hotness or coldness of a physical object (body). Thus, it is measured with a thermometer and its units are degree Celsius (°C), Fahrenheit (°F) and Kelvin (°K).

A calorie refers to the amount of heat required to raise the temperature of a gram of water by one (1) degree Celsius (1°C).

Given the following data:

Quantity of energy = 420JMass = 35 gramsInitial temperature, T1 = 10°C

The specific heat capacity of water is 4.2 J/g°C.

To find the final temperature of the water (T2):

Mathematically, the quantity of energy (heat capacity) is given by the formula;

[tex]Q = mcdt[/tex]

Where;

Q represents the heat capacity or quantity of heat.M represents the mass of an object.C represents the specific heat capacity of water.dt represents the change in temperature.

Substituting the values into the formula, we have;

[tex]420 = 3.5 \; * \; 4.2 \; * \; dt[/tex]

[tex]420 = 14.7 \; * \; dt\\\\dt = \frac{420}{14.7}[/tex]

Change in temperature, dt = 28.57°C

Next, we would solve for the final temperature by using this formula;

[tex]dt = T2 - T1[/tex]

[tex]28.57 = T_{2} - 10\\\\T_{2} = 28.57 \; + \; 10\\\\T_{2} = 38.57[/tex]

Final temperature, T2 = 38.57°C

Therefore, the final temperature of the water, T2 is equal to 38.57°C

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which best describes nuclear energy?
A the energy that matter has due to the vibrations of its particles
B the energy an object has due to its chemical bonds
C the energy generated by a flow of electrons
D the energy stored inside the center of an atom

Answers

Answer:

The correct answer is - D.  the energy stored inside the center of an atom.

Explanation:

Each atom has a small center in it called the nucleus and the energy that holds the nucleus or center of the atom together in the atom is known as nuclear energy.

It is the energy that is stored in the center of the atom and normally does not come out, however, in some radioactive atoms the sends some part of the energy as radiation.

Thus, the correct answer is - D.  the energy stored inside the center of an atom.

What is known about a reaction with a negative enthalpy?
A. The reaction is endothermic,
B. The reaction is spontaneous,
C. The reaction is exothermic,
D. The reverse reaction is favored,

Answers

Considering the definition of enthalpy of reaction, the correct answer is option C. a reaction with a negative enthalpy indicates that the reaction is exothermic.

Definition of enthalpy of reaction

The enthalpy of a chemical reaction as the heat absorbed or released when chemicals are transformed into a chemical reaction and it occurs at constant pressure.

The enthalpy is an extensive property, that is, it depends on the amount of matter present.

Finally, it must be taken into account that:

A reaction is called exothermic if its enthalpy of reaction is negative (that is, if the system gives up heat).A reaction is called endothermic if its enthalpy of reaction is positive (that is, if the system absorbs heat).

Summary

In summary, a reaction with a negative enthalpy indicates that the reaction is exothermic.

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Is backbonding is possible in BF4- ? If no then why?

Answers

Answer:

No, because Flourine can only form 1 bond, thus backbonding is not obtainable

precautive measures taken when using pooter​

Answers

I guess ensuring that you don't suck the insects or specimen collected by ensuring there is a net in the pooter

phương trình nào sau đây không đúng
Mg(OH)2 (t°)→ MgO+H2O
Fe(OH)2 (t°,chân không)→FeO+H2O
2Fe(OH)3 (t°)→Fe2O3+3H2O
2NaOH (t°)→Na2O+H2O

Answers

Phương trình NaOH sai nha

7. In a remote area of Columbia, kids have to travel to school on a zip-line!
Would school attendance increase if all kids has to get to school on a fun
zip line?

Make a hyphotesis

Help plz!!!

Answers

Answer:

yes

Explanation:

Kids like fun things, and school is not fun , so if kids got to go to school on a zipline, attendance would be through the roof!

Arrange the steps in order to describe how photons and carbon dioxide (CO2) contribute to the warming of Earth.

CO2 in the atmosphere absorbs infrared
photons.

CO2 in the atmosphere emits infrared photons back toward Earth.

Photons from the Sun strike Earth and become infrared photons.

Earth radiates infrared photons into the atmosphere

The Sun radiates sunlight (visible)
photons

Answers

The Sun radiates sunlight (visible)  photons

Photons from the Sun strike Earth and become infrared photons.

Earth radiates infrared photons into the atmosphere

CO2 in the atmosphere absorbs infrared  photons.

CO2 in the atmosphere emits infrared photons back toward Earth.

Certain gases are known to contribute towards global warming. Such gases are called greenhouse gases. The infrared rays from the sun are absorbed by these gases as they are re-emitted from the earth and re-emitted.

The sun radiates photons to the earth which is re-radiated into outerspace from the earth's surface. CO2 and other greenhouse gases absorbs these gases and re-emit them to the earth thereby causing a gradually rise in the temperature of the earth called global warming.

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what do you mean by acceleration due to gravity of a body is 10 metre per second square​

Answers

Answer:

If a body is accelerated by 10m/s^2, it means that the body's speed (or velocity to be precise) is increasing by 10m/s every second. That is, if the initial ...

A sample of oxygen gas occupies a volume of 160 liters at 364 K. What will be the volume of the gas when the temperature drops to 273 K?

210 L

120 L

62 L

470 L

Answers

Answer:

62L

.

.

.

.

tysm.

.

.

.

.

hope it help

Convert 100 miles to inches (there are 5280 ft in one mile)
using the method of dime signal analysis

Answers

Answer:

Explanation:

100 miles * [ 5280 feet / 1 mile] * 12 inches / 1 foot]

100 * 5280 * 12 inches

6336000 inches in 100 miles

PLS HELP WILL GIVE BRAINLIEST
it is a simple chemistry question
i thought F has 9 electrons, so why does this structure show 8 electrons.

Answers

Answer:

The IUPAC structure only shows bond pairs and lone pairs. In the flouromethane structure above, there is only one bond pair and three lone pairs of electrons. Therefore there is one electron remaining, but since it doesn't not make up a pair, it is ignored in the structure but theoretically it is present.

[tex].[/tex]

Answer:

therefore there is one electron remaining , but since it doesn't make up a pair . It is ignored in the structure but theoretically it is present .

If an atom has three shell and number of valence electrons are two. Is this element metal
or non-metal and why? Name the element and it’s valency.

Answers

Answer:

Metal

Element: Calcium

Valency: 2

Explanation:

To find the element, let's use the periodic table. (Look below)

We already went past 3 shells, just need the 2 electrons after it.

Just skip to the 4th row and count 2 to the right

We end up at Calcium.

Calcium is a metal and we're also on the alkaline earth metals column.

Calcium will need to lose 2 electrons to reach stability, so the valency is 2.

what is the requirements to obtain citizenship?

please answer it correctly​

Answers

Answer:

Age. ...

Residency. ...

Residence and Physical Presence.

Good Moral Character.

Attachment to the Constitution.

Language.

U.S. Government and History Knowledge.

Oath of Allegiance.

These are some requirements for obtaining citizenship .

Age
Culture
Race
Background

Câu 6: Cho 4,2 gam este đơn chức no E tác dụng hết với dung dịch KOH ta thu được 4,76

gam muối natri. Vậy công thức cấu tạo của E có thể là:

Answers

Please translate this in English or Korean and I’ll be happily help :)

Sorry I just don’t understand this language nor know It or I would translate myself

9. a) Name salt that can be prepared by precipitation

Answers

I think its the substances that sublimes

Aluminum hydroxide containing medicine is used for gastric why


Answers

Answer:

Aluminum Hydroxide, Magnesium Hydroxide are antacids used together to relieve heartburn, acid indigestion, and upset stomach. They may be used to treat these symptoms in patients with peptic ulcer, gastritis, esophagitis, hiatal hernia, or too much acid in the stomach (gastric hyperacidity).

Answer:

wow it's a very nice question

The atomic number of silicon (Si) is 14. What's the electron configuration for silicon? Question 1 options:
A) [Ar] 3p5
B) [He] 1s2 2p6
C) [Ne] 3s2 3p2
D) [He] 2s2 3p2

Answers

Answer:

D.[Ne] 3S2 3P2

Explanation:

The electron configuration for silicon is  [Ne] 3s² 3p². Hence Option (C) is correct.

What is elctronic configuration ?

Electronic configuration, also called electronic structure or electron configuration, the arrangement of electrons in orbitals around an atomic nucleus.

The electron configuration of an element describes how electrons are distributed in its atomic orbitals.

Electron configurations of atoms follow a standard notation in which all electron-containing atomic subshells (with the number of electrons they hold written in superscript) are placed in a sequence.

Silicon belongs to group 14th and 3rd period.Therefore, The electron configuration for silicon is  [Ne] 3s² 3p². Hence Option (C) is correct.

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Organisms do not adapt as a result of competition for resources.

Answers

Answer:

The given statement is False.

The organisms adapt as a result of competition for resources. Different places have different organisms suited for that particular places.

The animals living at a particular place compete for the resources available and the nature selects the organism that has won the competition for resources.

The organisms are evolved as a result of competition for resources

Answer:

I just wanted to say the other person is totally right.

this statement is false.

Plz help me with this question
Drawing of water molecular formulas
1.Draw molecular structure of water​

Answers

Answer:

Here is your answer. I hope it will help you .

Câu 1: Trong các dung dịch sau, dung dịch nào làm quỳ tím đổi màu xanh?
A. HCl B. H2SO4 C. NaOH D. NaCl
Câu 2: Bazơ nào dưới đây là bazơ không tan?
A. KOH B. NaOH C. Cu(OH)2 D. Ca(OH)2
Câu 3: Trong các chất sau đây, chất nào không phải là muối?
A. HCl B. KCl

Answers

C. NaOH

C. Cu (OH)

A. HCl

A student wants to separate a mixture of salt and water in a laboratory (a) Describe how the student can obtain both salt and water from the salt solution​

Answers

Answer:

okay so basically what you are being tested is if you know the difference between simple and fractional distillation and okay you can evaporate the mixture but you won't obtain water so you will use simple distillation to obtain both salt and water

help pls I will mark brainlest​

Answers

Resources found in lithosphere: gold and iron etc

Resources found in atmosphere: Water vapor, gases etc.

what occurs when the vapor pressure of a lquid is equal to the external atmospheric pressure

Answers

Answer:

The change from a liquid phase to a gaseous phase occurs when the vapor pressure of the liquid is equal to the atmospheric pressure exerted on the liquid.

Explanation:

Boiling is a physical change and molecules are not chemically altered during the process.

H3C6H507 + H2O + H3O+ + H2C6H507
acid
base

Answers

Explanation:

an acid will give away a proton and become a conjugate base.

A base will accept a proton and become a conjugate acid.

Other Questions
Are these all correct there part 1, 2,3,and 4 Help me out plz its 14 Two identical cars, each traveling at 16 m>s, slam into a concrete wall and come to rest. In car A the air bag does not deploy and the driver hits the steering wheel; in car B the driver contacts the deployed air bag. (a) Is the impulse delivered by the steering wheel to driver A greater than, less than, or equal to the impulse delivered by the air bag to driver B Find the probability that the spinner will land on gray and then purple Consumers consider more than (81) _________ goods and services when choosing a brand. Many are prioritizing corporate (82) ___________ responsibility (CSR), and holding corporations accountable for (83) __________ social change with their business beliefs, practices and profits. In fact, some will even turn their back (84)________ their favorite companies if they believe they're not taking a stand for societal and (85) ____________issues."Corporate responsibility is simply a way for companies to (86) ___________ responsibility for the social and environmental impacts of (87) ______business operations," said Jen Boynton, vice president of member engagement at 3BL Media. "A robust CSR program is an (88) ___________ for companies to demonstrate their good corporate citizenship and (89) ________ the company from outsized risk (90) _________ looking at the whole social and environmental sphere that surrounds the company." Who would be most likely to contest USMCA? A U.S. labor union leader A Mexican factory worker A Canadian working in the oil industry A Mexican politician one morning sam cycles 5km in 20 mins and Dwight cycles 6km in 30mins Determain who cycles faster. Show your work PLEASE HELP URGENTLY!! ect the correct text in the passage.Which sentence shows that the author is using first-person point of view?It was a lazy Sunday afternoon. The sun was blazing over the roof, baking us all like cookies in an oven. I was lying on the sofa reading an old book. I was home alone because my mom had gone to her friend's wedding. She had asked me to come along. But who would want to step out in the scorching heat? The only activity worth doing on a hot afternoon is to read a good book while sipping lemonade. I had just begun to enjoy the book when there was loud knock on the front door. I looked up and wondered if it were a robber, a salesperson, or just the next-door lady looking for sugar. Our neighbors were funny people. They would run out of things at the weirdest hours. I put my book away and walked to the door. which of the following describes an action-reaction pair? QuickNThe Plains Peoples were most likely to be: They drove back to the house to let the old woman off and pick up the lunch. When they were ready to leave, she stood staring in the window of the car, with her fingers clenched around the glass. Tears began to seep sideways out of her eyes and run along the dirty creases in her face. "I aint ever been parted with her for two days before," she said.Which best describes the irony in the excerpt? Sobre aes relacionadas ao aquecimento global, assinale somente as alternativas corretas:a) ( x) As aes humanas no influenciam no aumento da temperatura do planeta.b) ( ) As mudanas climticas so intensificadas pela emisso de gases das atividades humanas.c) ( ) A queima de combustveis fsseis e de florestas so as principais aes humanas que liberam gases que intensificam o efeito estufa.d) ( ) O efeito estufa um fenmeno natural.e) ( ) Se as guas dos oceanos ficarem mais quentes, os furaces no tero tanta fora. What is the purpose of Poloniuss speech to Laertes? Can Anyone please tell me How to Multiply 182182...Please show steps aslo.. What is wrong here?ayudahelp find the value of the variable for 5, 6 Question 6(Multiple Choice Worth 1 points)(03.04 LC) Lee y escoge la mejor respuesta. Read and select the best answer.Desafortunadamente, hay an muchas personas que se sienten superiores a las dems.La expresin o palabra que significa la manera de pensar de quien afirma que el hombre es superior a la mujer es ________. la percepcin la discriminacin el machismo la movilidad social Describe What You See in the PlacardWhich cause/s of New Imperialism does the Placard represent?Explain Why You Chose the Cause/s? A thunderclap sends a sound wave through the air and the ocean below. Thethunderclap sound wave has a constant frequency of 100 Hz. What is thewavelength of the sound wave in water? (The equation for the speed of awave is v= f x 1.)WaterDiamondGlassAir1,49312,0005,640346Speed ofsound(m/s)A. 11.00 mB. 12.00 mC. 14.93 mD. 3.46 m