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Answer:

The matter is made up of INDIVISIBLE particles known as atoms.

The properties of all the atoms of a given ELEMENT are the same including mass. This can also be stated as all the atoms of an element have identical mass while the atoms of different elements have different masses.

Atoms of different elements combine in FIXED ratios to form compounds.

Atoms are neither created nor destroyed. This implies that during CHEMICAL reactions, no atoms are created nor destroyed.

The formation of new products (compounds) results from the rearrangement of existing atoms (reactants).

Atoms of an element are identical in mass, SIZE and many other chemical or physical properties, but atoms of two-different elements differ in mass, size, and many other chemical or physical properties.

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ANSWER:YES it is the CORRECT answer

yes it is the correct answer

Explanation:yes

yes it is the correct answer

ANSWER:

Ortho nitrotoluene is more REACTIVE than paranitrotoluene towards Electrophilic Substitution REACTION(therefore being less stable) the reason being that though both Ortho and paradirecting groups are ACTIVATING groups(i.e they increase reactivity of the compound towards the above reaction) PARA position is less ...

EXPLANATION:

we havent vcffjhchguvhd

NUMEROUS scientific studies suggest that 4-5 parts per million (ppm) of DO is the minimum amount that will support a LARGE, diverse fish population. The DO level in good fishing waters generally AVERAGES about 9.0 parts per million (ppm).

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DOUBLE DISPLACEMENT REACTION

ANSWER:

CALCULATING...............

WAIT.

ANSWER:

ans 1 is that 11 si SODIUM and 17 is chlorine

ans 2 is that sodium is more metallic than chlorine

ANSWER:

propcinateol

Explanation:

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ANSWER:

(C)

EXPLANATION:

I HOPE this HELP you

EXPLANATION:

EXPLAIN QUESTION COMPLETELY

ANSWER:

REFER this..............

ANSWER:

undesirable

Explanation:

Answer:

The principle of chromatography  is samples are SUBJECTED to FLOW by mobile LIQUID onto or through the stable stationary PHASE and separates mixtures into their INDIVIDUAL components. In terms of fractions based on their relative affinity towards the two phases during their travel

Application:

-Identification of unknown organic and inorganic compounds from a mixture.

-In forensic studies, chromatography is used in crimescene investigation and DNA and RNA sequencing alongwith other studies.

Answer:

then MOLECULAR mass of GAS is mass of ONE MOLE of gas

Explanation:

EXPLANATION:

रवि जैसे कई नामों से पुकारा जाता है। कहते हैं कि सूर्यदेव ही एकमात्र ऐसे देवता हैं जो अपनी रोशनी से सारे संसार में उजाला करते हैं। इनके दर्शन भी साक्षात होते हैं साथ ही सूर्यदेव सात घोड़ों से सुशोभित सोने के रथ पर रहते हैं। इनके रथ में लगे सात घोड़ों की कमान अरुण देव के हाथ में होती है। परंतु क्या आप जानते हैं कि जिस रथ पर भगवान सूर

दरअसल भगवान सूर्य जिस सात घोड़े वाले रथ पर सवार रहते हैं उसके संबंध में धार्मिक ग्रंथों में कई पौराणिक प्रचलित हैं। सूर्यदेव के रथ को संभालने वाले इन सात घोड़ों के नाम - गायत्री, भ्राति, उष्निक, जगती, त्रिस्तप, अनुस्तप और पंक्ति हैं। इसके बारे में मान्यता है कि ये अलग अलग दिनों को दर्शाते हैं जो स्वयं सूर्यदेव की किरणों से उत्पन्न हुई हैं

EXPLANATION:

Your ANSWER is 2diaoptres...

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Answer:

36.8 C

Explanation:

USED the FORMULA (32°F − 32) × 5/9 = 0°C

Solution: (98.4°F − 32) × 5/9 = 36.889°C

Electrolytic Refining / Electrolysis :

• It is the process of purification of the metal obtained after reduction.

• Various methods for refining are employed but the most common one is the electrolytic refining.

• In this process, a thick block of impure metal is used as anode and a thin strip of pure metal is used as cathode.

• A solution of metal salt is used as an electrolyte.

• When ELECTRIC current is passed metal ions from electrolyte are reduced as metal which get DEPOSITED on the cathode.

• An equivalent amount of pure metal from the anode GETS oxidized due to metal ion and goes into the electrolyte and from there it goes to cathode and deposit.

• This cycle is repeated until whole of the metal Ion from impure block is dissolved and deposited on cathode.

• The soluble impurities GO into the solution WHEREAS the insoluble impurities settle down below anode and are known as anode mud.

Answer:

The pH of carbonated water is 3–4, which means it's slightly ACIDIC. HOWEVER, drinking an acidic BEVERAGE like carbonated water does not make your body more acidic. Your KIDNEYS and LUNGS remove excess carbon dioxide. This keeps your blood at a slightly alkaline pH of 7.35–7.45 regardless of what you eat or drink.

Answer:

B is a correct option OK b MEANS AIR

EXPLANATION:

Bromocyclohexane REACTS with Mg to form CYCLOHEXANE magnesium BROMIDE which is a Grignard reagent. On hydrolysis it gives cyclohexane.

______________________________

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SO2 GAS is SLOWLY PASS through a SOLUTION

ANSWER: 7.5 M

Explanation:

Answer:

Salt Bridge - Connecting the two half-cells. The CATIONS, POSITIVE ions, flow toward the cathode to REPLACE the cations that are being picked up at the electrode. The anions, negative ions, flow toward the anode to BALANCE the positive charge of the cations that are RELEASED from the electrode.

Answer:

100 kg/m³

Explanation:

To find the answer in SI UNIT, first we need to convert given MASS and volume in their SI units.

Mass = 50 g = (50/1000)kg = 0.05 kg

Volume= 500 cm³ = 0.0005 m³

Now,

DENSITY = Mass/Volume

= 0.05/0.0005

= 100 kg/m³

Answer:

Oxygen is essential for respiration because the body uses it to 'burn' food molecules. ANIMALS take in oxygen when inhaling and give off CARBON dioxide when exhaling. Oxygen makes up ALMOST 21% of the TOTAL gases in air, with most of the remaining gas being physiologically inert nitrogen.

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Answer:

1

Explanation:

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Answer:

AQUEOUS potassium permanganate reacts with CYCLOHEXENE to FORM a variety of products INCLUDING cis-l,2-cyclohexane- diol. The yield of the latter product is markedly ENHANCED by turbulent stirring

ANSWER:

साधारणतया हैलोजनों का सामान्य इलेक्ट्रॉनिक विन्यास

होता है।

The GENERAL electronic CONFIGURATION for halogens is

दूध, पानी में वसा का

........है।

Milkisan...,.....

of fat in water.

(III) भारी पानी का उपयोग न्यूक्लियर रिएक्टरों में ............. के रूप में किया जाता है।

(iii) Heavy water is used as ............... innuclear reactors.

Answer:

4massess are REQUIRED to do it !HOPE it HELPS you

Explanation:

1)curd

2)vinegar

3) insect bites

4) Lemon

5)NUT , seed and fruit and plants

6Blackcurrent and strawberry

7) APPLE , grape , orange

8)bannana, avacodo TAMARIND

ANSWER:

IUPAC NAME of CH3_CH_CH2_2Methylpropyl

Explanation:

The GIVEN equation is

X = ηAΔv/Δy

The DIMENSIONS of the QUANTITIES on RHS are

η ⇒ M¹L⁻¹T⁻¹

A ⇒ M⁰L²T⁰

Δv ⇒ M⁰L¹T⁻¹

Δy ⇒ M⁰L¹T⁰

Therefore, dimension of X is given by

X = (M¹L⁻¹T⁻¹)(M⁰L²T⁰)( M⁰L¹T⁻¹)(M⁰L¹T⁰)⁻¹

= (M¹L¹T⁻²)

This is the dimension of force. Therefore X has same dimenson as Force.

Answer:

3) IUPAC name of CH3-CH-CH-CH2-2-methyl BUTYL PLZ mark me BRAINLIST

Answer:

the ACID MUST be weak acid.

Explanation:

because its pH is less than 7 so it is acid and it's pH is 4 so it is a very weak acid.

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Answer:

from ideal gas equation,

T

1

P

1

V

1

=

T

2

P

2

V

2

Here,

P

1

=1 atm

V

1

=293 ml

T

1

=293 K

P

2

=1 atm

V

2

=?

T

2

=273K

putting all the values, we GET V

2

= 273 ml

Hence, option B is the correct answer.

Answer:

RED, Orange, Orange

Explanation:

23 Kilo OHMS = 23 ×

2 for RED

3 for ORANGE

for ORANGE

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ANSWER:

METHOXY METHANE is the IUPAC NAME

Answer:Which POSTULATE of Dalton's atomic theory is the RESULT of the law of CONSERVATION of mass? Solution : The postulate of Dalton's “Atoms are INDIVISIBLE particles, which can neither be created nor destroyed in a chemical reaction” is the result of the law of conservation of mass.

Answer:

Because the molecular mass of Hydrogen is 1gram/mole, there is 1 mole of hydrogen in 1 GRAM of hydrogen ATOMS. For every mole, there are 6.02*10^23 atoms so in 1 gram of hydrogen there are 6.02*10^23 hydrogen atoms (in scientific NOTATION) this is EQUAL to 602000000000000000000000 hydrogen atoms

ANSWER:

OPTION no (B) is the CORRECT answer

Answer:

The REACTION of 3-methylcyclohexanol with PHOSPHOROUS bromide GIVES 1-bromo-3-methylcyclohexane as the final PRODUCT. In the reaction the bromide ion dissociates from the PrBr3 and attaches to the CYCLOHEXANOL.

Answer:

COAL is one of the most useful fossil fuels. It has many applications such as producing heat for households, firing industrial generators, manufacturing cast iron, etc. It can also be produced in the industry to obtain products like coke, tar and coal gas. These by-products are beneficial to us too. Coke: Coke is a high-carbon product obtained by the destructive distillation of coal. The amount of carbon CONTENT in coke is so high that it is said to be an almost-pure form of carbon. Coke is grayish-black in colour and is a hard, porous solid. Uses:

The most common use of coke is as a fuel for stoves, furnaces and blacksmithing. It is sometimes preferred over coal because burning coke produces very little smoke.

It is also used to produce iron in a blast furnace.

Coke is used to manufacture steel and many other materials.

Coal tar: It is obtained as a byproduct in the process of making coke. Though its colour is the same as coke, tar is a highly viscous liquid. It also has an extremely unpleasant smell. Uses:

Coal tar is widely used to manufacture paints, perfumes, synthetic dyes, photographic material, drugs and explosives.

It can be utilized to make insecticides and pesticides. NAPHTHALENE balls that are commonly used to keep moths AWAY are made from tar.

Coal tar is an ingredient of anti-dandruff and lice-repelling shampoos, soaps and ointments.

Coal gas: This is also obtained as a byproduct while producing coke, and again, just like tar, its smell is not very pleasant. It is a highly flammable gas as the main component of it is methane. Thus, if not regulated carefully, it can form mixture with AIR resulting in explosions. Uses:

It is mainly used as a fuel in industries situated near coal processing plants.

Earlier, it was used as a source of light. In the year 1820, it was used in London for the first time as street lighting.

Now, it is more commonly used to provide heat for domestic and industrial purposes.

<P>Answer:

5.6l

Explanation:

we KNOW that PV is EQUAL to nrt and also P is equal to Drt÷M in this formula at STP VINO density gas constant and temperature and also pressure by this we can calculate molecular mass by molecular mass we can calculate number of moles and then by pv=nrtby substituting the values of pressure number of moles gassed constant and temperature we can get the volume which is equal to 5.6 LITRES .

ANSWER:

HCL CHLOROPRENE ...,...

Explanation:

*Newland could arrange ELEMENTS only up to calcium, out of the total 56 elements KNOWN.

*After calcium, every EIGHTH element did not possess properties similar to that of the first.

*Only 56 elements were known at the TIME of Newlands, but later several elements were discovered.

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Answer:

YES, AIR is a optically RARER medium than water as the speed of light is more in air as COMPARED to water

Answer:

4Al+H20 ----------2Al203+3H2