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A) Atomic mass of silver = 108 u
Mass of 1 g ATOMS of silver = 108 gram
Mass of 0.1 gram atoms of silver = 10.8 grams

b) Mass of 1 mole SULPHURIC acid or H2SO4 = 1*2 + 32 + 4*16 = 98 grams

c) Did you mean 1 gram atoms of carbon ? If yes, the mass is 12 grams. If no, the mass is 1 gram.

You can now order the substances.

Compounds like alcohol and glucose contain H but it doesn't DISSOCIATE into . So it is not an acid.

Activity:
TAKE two blue litmus paper. Dip them into glucose solution and the alcohol. You will notice that there is no change in colour of the blue litmus paper. This SHOWS that they are not acids. 

If they were acids, then the blue litmus paper would have CHANGED to red.

We have R.M.S
μ = in this M = MOLAR mass
And in the case of Nitrogen GAS, T = 27 + 273 = 300 K.R = 8.314 (kg  /  )/ K mol

Since molar mass of Nitrogen gas = 28 gm/mol = 2.8 x  kg/mol
Hence μ = = [ 3 x 8.314 x 300 / 2.8 x ] = [267235.7 = 516.9m/s

So the r.m SPEED for oxygen gas at 0°C (273K) = 516.9 m/s

On PERSISTENT DIALYSIS of colloidal sol the electrolyte is completely REMOVED because of which the colloidal sol BECOMES UNSTABLE and gets coagulated.

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Soap helps insoluble particles to become SOLUBLE in water. It makes the cleaning easy. Oil or fats are insoluble in water.
Soap molecules has two parts- the polar head and the non-polar long hydrocarbon tail. The polar part is associated with the water .The insoluble oil/fat molecules become associated inside the micelle formed by soap molecules with polar hydrophilic (water-loving) GROUPS on the outside and encasing a hydrophobic (water-hating) pocket. The fat molecules are ATTACHED to the micelle which shields the oil/fat molecules from the water making it soluble. Once the dirt or fat molecules are DISSOLVED in water, it can be rinsed away easily.

Given mass of GAS =7.5g
volume=5.6l
STP=22.4l
so 22.4/5.6*7.5=30g=mol.Wt of gas
the gas is NO (NITRIC oxide)

2CH3COCl  +  CD(CH3)2  ------------------->    2CH3COCH3  + CDCL2

Helium has 2 electrons in the first shell which can accomodate a maximum of 2 electrons. As the shell is completely FILLED, Helium is STABLE.
Beryllium has 2 electrons in the second shell which can accomodate a maximum of 8 electrons. As the shell is not completely filled, Beryllium is not stable.
Beryllium can lose two electrons to get a stable noble GAS CONFIGURATION. Thus it has an electron DONATING nature. Hence it behaves as a metal.

Advantage:
       This table was helpful in the prediction of properties of elements as there was a regular gradation in properties of elements across periods and GROUPS. The group numbers of the periodic table indicates the highest oxidation state of elements. Mendeleev’s left some vacant positions which LATER filled with newly discovered elements. These vacant positions provided the idea about the chemical and physical properties of those new elements. For example Eka-Boron,
Eka-Aluminium and Eka-silicone were later discovered as Sc, Ga and Ge respectively

Disadvantage:
          the isotopes and no SEPARATE position also as they have different atomic mass but same atomic number. Since the CHANGE in atomic mass of two successive elements was not constant therefore it was difficult to predict the number of missing elements with the help of atomic number only. 
          the atomic masses of all elements were not KNOWN therefore it was difficult to place the correct element in proper group of the periodic table such as Mendeleev’s placed iodine after tellurium and potassium and Ni after Co which was not following the periodic law but was following the order of properties      

Answer:

SO4 has a valency of 2 . To find its valency ,I can ADVICE you 2 ways which I often use are:

a•SO4 is an anion which has came from an acid H2SO4, in which hydrogen as always has valency 1. SINCE hydrogen is more electro+ve than SO4,its oxidation no. will be +1. So by using this information we can find oxidation no. of SO4.

Let x be oxidation no. of SO4. Since, the sum of oxidation NOS. will be zero, so equating it with zero:

2×H+1×SO4=0

2×1+1×x=0

x=-2Which is the oxidation no. of SO4.

This IMPLIES that it has valency 2.

ANSWER:

BCZ it can both DONATE or TAKE from others.z

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NITROUS oxide (N2O) is FORMED when Ammonium NITRATE is heated.

Explanation:

Universal ADULT Franchise is the right of EVERY adult to VOTE in a democratic form of GOVERNMENT .

EXPLANATION:

1. They have FREE flow of electrons through them.

2.they have a certain resistance which in LONG RUN heats the conductor.

Answer:

because aluminum has a HIGH melting POINT and is a great CONDUCTOR that copper

Answer:

International Union of Pure and Applied Chemistry

The International Union of Pure and Applied Chemistry is an international FEDERATION of National Adhering Organizations that represents chemists in individual COUNTRIES. It is a member of the International COUNCIL for Science.

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ANSWER:

0.25

step by step explanation:

1 mole occupy 22.4 litres of volume

x mole occupy 5.6 litres volume is

x=1×5.6/22.4(by cross multiplication)

x=56/224

x=1/4

x=0.25

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It is commonly USED to precast and hold parts of ornamental PLASTERWORK placed on ceilings and cornices. It is also used in medicine to make PLASTER casts to immobilize broken bones while they heal, though many modern orthopedic casts are made of FIBREGLASS or THERMOPLASTICS.

ANSWER:

Explanation:

1amino butan1one

Answer:

between 1 mm to 1000 mm

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ANSWER:

here the answer

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Answer:

0.6×32=19.2

Explanation:

No of mol×molecular mass

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ANSWER:

ATOMS are smallest indivisible particleswhile the MOLECULES is the mixture of same atom or GROUP of atom

ANSWER:

here your answer

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ANSWER:

WATER

◾ice melts slowly at normal TEMPERATURE

SHOWS ice cube with some water.

◾or a PIECE of butter

ANSWER:

HEY mate here is ur answer

Explanation:

OPTION(2)

HATHO SE barood KE awayavoan ko alag KARENGE

Explanation:

Melting occur DUE to the heat.

Smelting is a PROCESS of applying heat to ORE in ORDER to extract a base METAL.

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============================

periodic:- a tabular ARRANGEMENT of ELEMENT in GROUP and periods highloghting the regular trends in properties of elements is called a PERIODIC

______________________________

periodicity:- the properties that reappears at regular intervals or in which there is gradual variation at regular interval are called product properties and the PHENOMENON is known as the periodicity of element.

============================

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Answer:

alkane GENERAL FORMULA is CnH2n+2

Explanation:

methane formula is C2H6

In the place of n substitute 2 so u can GET methane formula so it is alkane

Answer:

EXPLANATION:

Its methane

ETHANE

PROPANE butane and so on

ANSWER:

when two BODY come in contact with each other EXERTING equal and opposite force, it is COLLISION

Answer:

10/9 m

Explanation:

Mass of ETHANOL = Volume × Density

= 100 ml × 0.46 g/ml

= 46 g

Moles of ethanol = Mass / Molar mass

= 46 g / (46 g/MOL)

= 1 mol

Volume of water in the solution = 900 ml

Density of water = 1 g/ml

Mass of water = Volume × Density

= 900 ml × 1 g/ml

= 900 g

= 0.9 kg

Molality = Moles of solute / kg of solvent

= Moles of Ethanol / (kg of water)

= 1 mol / (0.9 kg)

= 10/9 m

Answer:

10/9 m

Explanation:

MASS of ethanol = VOLUME × DENSITY

= 100 ml × 0.46 g/ml

= 46 g

Moles of ethanol = Mass / Molar mass

= 46 g / (46 g/mol)

= 1 mol

Volume of water in the solution = 900 ml

Density of water = 1 g/ml

Mass of water = Volume × Density

= 900 ml × 1 g/ml

= 900 g

= 0.9 KG

Molality = Moles of solute / kg of SOLVENT

= Moles of Ethanol / (kg of water)

= 1 mol / (0.9 kg)

= 10/9 m

ANSWER:

I WISH DIRECT WOULD 32 to

ALCOHOL and water

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ANSWER:

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Answer:

Explanation:

Graham's law of diffusion (also known as Graham's law of EFFUSION) STATES that the rate of effusion a gas is inversely proportional to the square root of its molar mass. Often, it is USED to compare the effusion rates of two gases.

For derivation follow image