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Answer:

Fuel + O2 → CO2 + H2O. In a COMPLETE COMBUSTION REACTION, fuel and oxygen are the reactants and the products are carbon dioxide and water. These two products cannot react to REFORM the fuel and oxygen, so the reaction is irreversible.

Explanation:

Your answer

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Explanation:

8 PYRIDINE is an EXAMPLE of COMPOUNDS, a 7-membered RING

ANSWER:

आक्सैलिक अम्ल (OXALIC ACID) पोटैसियम और कैल्सियम लवण के रूप में बहुत से पौधों में पाया जाता है। लकड़ी के बुरादे से क्षार के साथ २४०° से २५०° सें. के बीच गरम करके आक्सैलिक अम्ल, (COOH)2, बनाया जा सकता है। इस प्रतिक्रिया में सेल्यूलास Ca-COOH-COOH की इकाई आक्सीकृत होकर (COOH)2 का रूप ग्रहण कर लेती है। आक्सैलिक अम्ल को औद्योगिक परिमाण में बनाने के लिए सोडियम फ़ार्मेट को सोडियम हाइड्राक्साइड या कार्बोनेट के साथ गरम किया जाता है। आक्सैलिक अम्ल का कार्बोक्सिल समूह दूसरे कार्बोक्सिल समूह पर प्रेरण प्रभाव डालता है, जिससे इनका आयनीकरण अधिक होता है। आक्सैलिक अम्ल में शक्तिशाली अम्ल के गुण हैं।

ANSWER:

Explanation:

You usually NEED to fast for 8–12 HOURS before a test.

Answer:

Explanation:

RATE of reaction increase to 8 TIMES the INITIAL rate of reaction with increase in 40° temp.

With increase in 10° rate of reaction 2×initial

Hence for 40° :(40/10)x2xinitial rate of reaction

Answer:

The Nature of CHEMISTRY Chemistry is the study of the composition, STRUCTURE, and properties of matter and of changes (TRANSFORMATIONS) that occur in matter. Matter is the building block material of the UNIVERSE. It is anything that takes up space and has mass.

ANSWER:

Ethylene glycol, HOCH2CH2OH, has zero DIPOLE MOMENT EVEN though carbon–oxygen bonds are strongly polar and oxygen has two lone-pairs of electrons. ... Ethylene glycol, HOCH2CH2OH, has zero dipole moment even though carbon–oxygen bonds are strongly polar and oxygen has two lone-pairs of electrons.

Answer:

Example- Hg2+(r+=102pm) is more polarizing than Ca2+(r+=100pm). The size of the charge in an ionic bond depends on the number of electrons TRANSFERRED. For example, an ALUMINIUM atom with a+3 charge has a relatively LARGER POSITIVE charge.

ANSWER:

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→™ Nuts and BOLTS made up of the same metal are preferred because they have the same STRENGTH and stress resistance.

...❀..._____________________________________

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ANSWER:

diffusion

Explanation:

ANSWER:

a CHART on the top FEATURES of WINDOWS 7.

ANSWER:

24 carat GOLD is the CORRECT answer

ANSWER:

GOOD MORNING have a NICE DAY ahead

Answer:

EXPLANATION:

HELLO THERE!

Here's your answer ;)

Compound:- Calcium Chloride.

Molecular Formula: CaCl₂

Molecular mass:- 40 + 2×35.5 = 111

(Atomic mass of Ca = 40 and Cl = 35.5)

HENCE,

In 111g of Calcium chloride, there is 40g of Calcium and 71G of Chlorine.

PERCENTAGE Composition of Calcium:

Percentage composition of Chlorine:

Thus,

Percentage Composition of Calcium is 36.03%

Percentage Composition of Chlorine is 63.96%.

EXPLANATION:

Acetylene needs to be reacted with ozone and zinc dust to FORM glyoxal. Now glyoxal is reacted with alkaline potassium PERMANGANATE to form oxalic ACID which has a CARBOXYLIC acid group attached to each other.

Answer:

Raat KO online NHI aaoge to pata lag jayega

Waise badi jadli HAI MARNE KI? xD

Answer :-

HALOGEN acids are polar in NATURE and WATER is also polar . when halogen acids are added in water than HYDROGEN is converted into hydrogen ion and hydronium ions are SOLVATED in water.

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Explanation:

Diammonium phosphate (DAP) is the world's most WIDELY used phosphorus (P) fertilizer. It is MADE from two common CONSTITUENTS in the fertilizer INDUSTRY and it is popular because of its relatively high nutrient content and its EXCELLENT physical properties.

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Answer:

EXPLANATION:

Because of their ability to FORM intermolecular hydrogen bonding, carboxylic acids have HIGH boiling points as COMPARED to the corresponding alcohol.

ANSWER:

in DECARBOXYLATION of sodium SALT of propanoic acid,the alkane x is formed and its kolbes ELECTROLYSIS of its aqueous solution another alkane y is liberated.x,y are

Answer:

gamma ray, also known as gamma radiation (symbol γ or. ), is a penetrating FORM of electromagnetic radiation arising from the radioactive DECAY of atomic nuclei. It CONSISTS of the shortest wavelength electromagnetic waves and so imparts the highest photon energy.

ANSWER:

It is SAID as ATOMIC MASS of the ELEMENT.

Answer:

MASS by volume percentage (wv) is the mass of solute DISSOLVED in 100 mL of the solution. Consider 100G of 10% solution of glucose whose conc. is 10% ww. Molality of the solution is the number of MOLES of the solute per kilogram of the solvent. Hence, the molality of the solution is 0.617m.

Answer:

2-chloro 3-ehoxy 4-phenyl prop-2en-1-al

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Answer:

The first problem is solve by using asbestos DIAPHRAGM. Its keeps the TWO solutions separated and migrate Na+ ions towards the chloride. The second problem is solve by keeping the brine level SLIGHTLY higher in anode compartment . So, flow of liquid continues towards the CATHODE and OH- ions can not react the anode.

Answer:

◼MANGANESE DIOXIDE is a, powerful oxidising agent. So, When manganese dioxide is added to HCl it gives out GREENISH yellow gas which is CHLORINE with water and a salt. ... Hence the gas evolved is chlorine.

Explanation:

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It's VSEPR NOT VSERP

The SHAPE of the molecule depends upon the no of electron pairs present inside the centre of nucleus

The electron pairs revolve AROUND. They stay far from each other electron in shell to minimise the repulsion

The electron pairs does not REPEL because they MOVE in space from each other to make repelling less

Lone pair - - - - lone pair---->lone pair-bond pair--->bond pair - - - bond pair

Answer:

Joseph BLACK (16 APRIL 1728 – 6 December 1799) was a Scottish physicist and chemist, known for his DISCOVERIES of magnesium, latent heat, specific heat, and carbon dioxide. He was Professor of ANATOMY and Chemistry at the University of Glasgow for 10 years from 1756, and then Professor of Medicine and Chemistry at the University of Edinburgh from 1766, teaching and lecturing there for more than 30 years.[2]

Explanation:

solid- RELATIVELY RIGID definite volume and SHAPE. In solid the atoms and molecules are ATTACHED to each other.

liquid- definite volume but able to change shape by FLOWING in a liquid ,the atom and molecules are loosely bond.

Gas - non definite volume or shape.

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CO ordinate covalent BOND was purposed by sidgwick

• it is a special type of covalent bond

• in this the shared pair of electrons are contributed by one of the bonded atoms

• which atoms contributing the pair of electrons is known as donar

• which ATOM shares the pair of electrons is known as acceptor

• the bond is represented by ➡️ ( arrow ) from donar atom to acceptor atom

example : 1. NH4+ ( AMMONIUM ion)

2. H3O+ ( hydronium ion)

hopes it's helpful

Answer:

Acetone, or propanone, is an organic compound with the formula (CH3)2CO. It is the SIMPLEST and smallest KETONE. It is a colourless, HIGHLY volatile and flammable liquid with a CHARACTERISTIC pungent odour.

Explanation:

Ig @leemin_annie

Answer:

SALT is an ionic compound that RESULTS from the neutralization reaction of acids and bases. Salts are constituted of positively charged ions, known as cations and negatively charged ions, known as ANIONS, which can either be organic or INORGANIC in nature. These ions are present in a relative AMOUNT, thus rendering the nature of the salt neutral. The formation of salt can be seen from the chemical reactions shown in the equations below. To learn more about acids and bases and neutralization reactions,

Explanation:

ANSWER:

1S=1+0=1

3p=3+1=4

1d=1+2=3

3f=3+3=6

1g=1+4=5

so,answer is 1s

Answer:

A) Since warm air takes up more space than the same amount of cold air it MAKES the BALLOON inflate.

B) The pressure from the WATER causes the air to compress inside the balloon. The deeper the balloon is taken into the water, the greater the pressure, and therefore, the smaller the balloon will become.

C) As the bubbles move upwards, the pressure on them decreases. This causes increase in volume. So, as the bubbles move upwards, their size INCREASES.

ANSWER:

C) 2:1....

EXPLANATION:

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shsowm

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Answer:

A) Since WARM air TAKES up more space than the same amount of cold air it makes the balloon inflate

B) The pressure from the WATER CAUSES the air to compress inside the balloon. The DEEPER the balloon is taken into the water, the greater the pressure, and therefore, the smaller the balloon will become.

Answer:

Explanation:

FOOD, packaged food, sealed and waterproof.

heat, FIRE, inextinguishable

water, BOTTLED water, not CONTAMINATED.

ANSWER:

Y=3.94

Y=4

Explanation: AS SIMLE AS THAT

ANSWER:

WRITE PROPER QUESTION!!

EXPLANATION:

#queen♥️

ANSWER:

sir can u PLS ask 8th CLASS questions.

Explanation:

I think that the OPTION D which is CO2 + KOH -- > K + CO + H2O ,

Answer:

9dyoy690₹,7_24%24%24%

ANSWER:

yes this MOLECULE IUPAC name is 3 phenoxy heptane

Answer:

MOLE fraction REPRESENTS the number of molecules of a PARTICULAR component in a mixture DIVIDED by the total number of moles in the given mixture. It's a way of expressing the concentration of a solution. Therefore, the sum of mole fraction of all the COMPONENTS is always equal to one.

There are three zones in the candle flame in which the NON – luminous zone is the zone of COMPLETE COMBUSTION, the luminous zone has limited oxygen supply and is moderately hot and the THIRD zone is the dark zone which does not burn DUE to the absence of air.

Hᴏᴘᴇ ɪᴛs ʜᴇʟᴘs ʏᴏᴜ ❤

Answer:

1

Explanation:

The number of ION pairs that constitute one UNIT CELL of CSCL is 1

Answer:

(i) For n=3, the period in which the element BELONGS is THIRD. The electronic configuration is 3s

2

3p

4

and the element belongs to p block. The group NUMBER of the element is 10+ number of ELECTRONS in the valence shell.

=10+6=16

Thus, the element belongs to third period and sixteenth group.

(ii) For n=4, the period in which the element belongs is fourth. The electronic configuration is 3d

2

4s

2

and the element belongs to d block. The group number of the element is = number of electrons in the (n−1)d subshell + number of electrons in ns subshell=2+2=4

Thus, the element belongs to fourth period and fourth group.

(iii) For n=6, the period in which the element belongs is sixth. The electronic configuration is 4f

7

5d

1

6s

2

and the element belongs to f block. All f block elements BELONG to third group.

Thus, the element belongs to sixth period and third group.

Answer:

So, Calcium and strontium are the two ELEMENTS we WOULD EXPECT to show CHEMICAL reactions similar to magnesium.

Answer:

c)CO3 is your correct answer

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Answer:

Correct option is Al becuse

Reducing agent REMOVE OXYGEN from other COMPOUNDS or add oxygen to itself therefore the reducing agent here is ALIMINIUM.