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Answer:

An absolute MORAL rule is a rule that states that some actions ought to be done (or ought never to be done), no exceptions. EXAMPLES include: We should never INTENTIONALLY kill an INNOCENT PERSON. We should never lie.

Answer:

the DISTANCE between the centers of two COLLIDING molecules when at their CLOSEST point of approach.

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CATALYSIS is the process of increasing the rate of a chemical REACTION by adding a substance known as a CATALYST. Catalysts are not consumed in the catalyzed reaction but can act repeatedly. Often only very SMALL amounts of catalyst are required.

Answer:

It CONSISTS of decomposition and recomposition. In the FIRST place coal is solid carbon, a HEAVY substance, but if this be united chemically with oxygen, in parts (CO2) it becomes carboni* ACID GAS.

ANSWER:

yes

Explanation:

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ANSWER:

c+d is NOO for your answer

• Hydrochloric acid, ALSO known as muriatic acid, is an aqueous solution of hydrogen CHLORIDE. It is a COLORLESS solution with a distinctive pungent SMELL. It is classified as a strong acid. It is a component of the gastric acid in the digestive systems of most animal species, including HUMANS.

• LACTIC acid, or lactate, is a CHEMICAL BYPRODUCT of anaerobic respiration — the process by which CELLS produce energy WITHOUT oxygen around. Bacteria produce it in yogurt and our guts. Lactic acid is also in our blood, where it's deposited by muscle and red blood cells.

ANSWER:

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ANSWER:

To convert (a) Acetylene to Acetaldehyde:

Acetylene is treated with ACIDIC MEDIUM in presence of Mercury to GIVE 1-ethene-1-ol. This intermediate product UNDERGOES tantomerism to form acetaldehyde. And the Acetylene can be converted into Acetaldehyde.

Answer. It is essential for standard units to be constant in TIME and place so that scientists can COMMUNICATE and be SURE they are TALKING about the same things from one place to another and from one age to another regardless of language differences, ethnic diversity and folkloric customs.

Explanation:

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ANSWER:

Iron is magnetic and the other two not, which means a magnet could be USED to ATTRACT the iron filings out of the mixture, leaving the salt and SAND. Salt is water soluble, while sand is not. This means the two can be mixed in water and stirred. The salt will dissolve and the sand will not.

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Answer:

• All the atoms here are of more electronegative. Each atom PULLS electrons TOWARDS it. So, the bonds becomes short, ESPECIALLY O - O BOND.

Answer:

CU2+(AQ) + 2e- -> CU(s) 0.34

Explanation:

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Answer:

EXPLANATION: Reactions of ozone with ethene and propene leading to primary ozonide (concerted and stepwise ozonolysis) or epoxide and singlet molecular oxygen (partial ozonolysis) are STUDIED THEORETICALLY. The mechanism of concerted ozonolysis PROCEEDS via a single TRANSITION structure which is a partial diradical.

Explanation:

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Answer:

Answer

An ACIDIC BUFFER solution consists of a weak ACID (such as acetic acid) and its salt (such as SODIUM acetate) with a strong base (such as NaOH).

A buffer solution can be prepared from a mixture of:

(i) Sodium acetate and acetic acid in WATER

(ii) Sodium acetate and hydrochloric acid in water

Hydrochloric acid will partly neutralize sodium acetate to form acetic acid.

Explanation:

ANSWER:

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व्हेनिस स्टेशनच्या बाहेर रस्ता नाहीच . एखाद्या विस्तीर्ण नदिसारखा पसरलेला एक प्रचंड कालवा आहे . त्याला ग्रँड कॅनॉल म्हणतात . लेखक तेथे पोहचले तेव्हा या कानोलमध्ये अने पॉटर टॅक्सी म्हणजे मोटार लॉचीस आणि मोठ्या यांत्रिक नाव उभ्या होत्या . व्हेनिस व्हेनिझिया , पियाझा असा पुकर चाललेला असतो .

ANSWER:

the ha

f life of FIRST ORDER r

As the size of the halogens increases, the REACTIVITY of the ring decreases. It also depends on the resonance effect of donating or ACTIVATING. Resonance effect MEANS delocalisation of pi electrons between the rings and substitutents.

Answer:

EXPLANATION:

Let us write the quantum numbers

Explanation:

Calcium

Its symbol is Ca .

Its atomic number is 20 .

The electronic configuration of calcium (20) is 1s², 2s² 2p⁶,3s² 3p⁶ 4s².

Quantum numbers

They are the certain set of numbers that tells us about the complete address of a electron .

In it :

PRINCIPLE quantum number ( n) -principle shell of an atom

Azimuthal quantum number ( L )- tells about the sub shell

Its value is EQUAL to (n-1 )

If  l=0 then it signifies --> s-orbital

If L=1 then it signifies --> p orbital

If L=2 then it signifies --> d orbital

If L=3 then it signifies --> f orbital

Magnetic quantum  number ( m )-->tells the i.e the number of ORBITALS present so for s subshell it is 0

spin quantum number (s) tells about the spinning the  for the electron which is +1/2 or -1/2

In the above asked question we have :

The four quantum numbers for the 19th electron would be:

n=4

l=0

m=0

s = +1/2, -1/2 .

OPTION B

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Answer:

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Explanation:

It becomes hot i.e., there is rise in temperature. It expands in size. It CHANGES in STATE such as water BOILS to form water VAPOUR.

ANSWER:

The metals OCCURING at the bottom of the reactivity series (silver,gold, platinum ) are least reactive metals and are found FREELY in the EARTHS CRUST

ANSWER:

Molarity

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Answer:

The reason is that carbon is tetravalent. A normal (straight chain) alkane has a formula of CnH2n+2.

When you make a cycloalkane (ONE ring only), you will tether two ends of a straight chain to close it into a loop. You have to lose TWO hydrogens in order to “open up” both ends, so that you can close the loop.

So, if you look at the formula for a cycloalkane, it is the formula of a normal alkane, minus two hydrogens. Therefore, the formula of a cycloalkane is CnH2n (i.e. CnH2n+2 minus 2).

When you make an normal (straight chain) alkene [actually, a mono-alkene with only one DOUBLE BOND], you have to create a double bond between two carbon atoms in the chain. In order to do this, you have to lose TWO hydrogen atoms from adjacent carbon atoms, so that the two carbons can then get TOGETHER and make a double bond. Therefore, the formula for a straight chain mono-alkene is CnH2n (CnH2n+2 minus 2).

This is why cycloalkanes and ALKENES have the same formula CnH2n.

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ANSWER:

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Answer:

NAME Number of CARBON Atoms BOILING Point (°C)

propane 3 −42

butane 4 0

pentane 5 36

hexane 6 69

EXPLANATION:

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ANSWER:

Not all TRAIDS were included in NEW lands octaves

because DOBEREINERS traids said that

A+C/2=B

but in new lands octave this was not there

EXPLANATION:

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ANSWER:

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Answer:

based on ROCK SALT GEOMETRY, solid XY will have COORDINATION number 6 for both X and Y.

ANSWER:

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ANSWER:

In the electrolysis of acidulated water, oxygen GAS is evolved at the ANODE. OH– being negatively charged, moves towards the anode (POSITIVELY charged electrode). +ve charge moves towards cathode whereas -ve charge move towards the anode.

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Answer:

In the absence of OXYGEN, DIAMONDS can be heated to much higher temperatures. Above the temperatures listed below, diamond crystals TRANSFORM into GRAPHITE. The ULTIMATE melting point of diamond is about 4,027° Celsius (7,280° Fahrenheit).

Explanation:

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ANSWER:

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Explanation:

Explanation:

Most absorption SPECTROSCOPY of ORGANIC compounds is based on transitions of n or p electrons to the p* EXCITED STATE. This is because the absorption peaks for these transitions fall in an experimentally convenient region of the spectrum (200 - 700 nm).

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ANSWER:

white crystalline SALT which occurs NATURALLY in nitre and is used in PRESERVING meat and as a constituent of GUNPOWDER

Answer:

2 moles.

Logic:

no of moles

STEPS:

Mass of = Mass of Ca + 2 (Mass of O) + 2(Mass of H)

= 40 amu + 32 amu + 2amu

= 74 amu.

Moles of  will be

ANSWER:

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ANSWER:

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ANSWER:

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ANSWER:

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ANSWER:

PH2 = 0.80atm​

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• By periodic classification of the elements, we mean the arrangement of the elements in such a way that the elements with similar PHYSICAL and chemical PROPERTIES are grouped together and for this, various scientists made contributions, but however, the contributions made by Mendeleev are of great SIGNIFICANCE and he .

• The periodic table is a tabular array of the CHEMICAL elements organized by atomic number, from the element with the lowest atomic number, HYDROGEN, to the element with the HIGHEST atomic number, OGANESSON. The atomic number of an element is the number of PROTONS in the nucleus of an atom of that element.

ANSWER:

the answer is PRESENT in the above attachment

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