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It will TAKE much TIME because the plastic will MAKE faster but the SAND will not allow the plastic to reach is ignition TEMPERATURE

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Lucas' reagent is a solution of zinc chloridein concentrated hydrochloric ACID, used to classify alcohols of low molecular weight. The reaction of alcohol with HCl involves a NUCLEOPHILIC SUBSTITUTION reaction, which RESULTS in the formation of chloroalkans. ... ZnCl2 acts as a catalyst in this reaction.

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The MOLAR volume for a MIXTURE of methanol (1) + water (2) at 298.15 K and 1 bar is given as



where V is in UNITS of cm3/mol.

A. What is the partial molar volume of methanol at this T and Pwhen x1 = 0.4?

AGCL is ONE good example of a Frenkel defect in ionic solids.

Frenkel DEFECTS are the defects in which the ions leave their positions and occupy interstitial sites.

This be explained in the case of Agcl by the following -

-A difference exists between the sizes of Ag and Cl atoms

-So, Ag atom LEAVES its positions and OCCUPIES interstitial sites.

Hydrocarbons are compounds made from carbon and HYDROGEN atoms joined by covalent bonds. ALKANES are saturated - they have only SINGLE bonds. Alkenes have a double bond - they are UNSATURATED. Alkenes react with brown bromine water and decolourise it, but alkanes do not.

Its COAGULATION power.
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Hello... Your answer is..
Ethane
Methane
PROPANE
Butane
Pentane
Hexane
HEPTANE
OCTANE

Phosphorus electron configuration is 1s2,2s2,2p6,3s2,3p3, NITROGEN has 1s2,2s2,2p3; the electronegativity is a property of valence electrons (energy it TAKES to remove the electron) in nitrogen it is second shell (2s2,2p3) while in phosphorus it is the THIRD shell (3s2,3p3), more REMOTE from the nucleus and therefore easier to remove.

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HYDROGEN = H
Helium = He
Lithium = Li
Beryllium = Be
Boron = B
Carbon = C
Nitrogen = N
Oxygen = O
Flourine = F
Neon = Ne
Sodium = Na
Magnesium = Mg
Aluminium = Al
Silicon = Si
Phosphorus =P
Sulphur = S
Chlorine = Cl
Argon = Ar


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Dear student

The ELECTROLYSIS of a water molecule is an endothermic REACTION because it is an EXAMPLE of decomposition reaction, water molecule BREAKS into H2 and O2 . And mostly all the decomposition reactions are endothermic in nature. In the decomposition reaction, larger molecules breaks into SMALLER molecules and energy is required to break these bonds.

C+O --> CO the carbon reacts with oxygen to FORM carbon mono OXIDE

2 PB3O4(s) = 6 PBO(s) + O2(g)

The ATMOSPHERIC pressure inside the pot is boosted by the trapped STEAM. This causes the boiling point of the water to increase from the regular 212 degrees FAHRENHEIT to 250 degrees Fahrenheit. This ELEVATED temperature is the reason FOODS cook faster in a pressure cooker.

The equation to the above REACTION is:-

Cr2O72- + 6Fe2+ + 14 H+ -> 2 Cr3+ + 6 Fe3+ + 7H20

Given, Concentration of K2Cr2O7 = 0.01 M

Volume of K2Cr2O7 = 50 ml

Therefore, moles of K2Cr2O7 present = ?

M = n/V

0.01M = (n/50)*1000

n = (0.01 * 50 )/1000

= 0.0005 moles

1 mole of K2Cr2O7 -> 6 moles of Fe2+

0.0005 moles of -> 6 * (0.0005)= 0.003 moles of Fe2+

Therefore, the strength of Fe2+ solution required is =?

V= 25ml = 0.025l

n= 0.003 moles

M=?

M= n / V (in LITRES)

= 0.003/ 0.025

= 0.12M

Ans:- 50ml of 0.01M K2Cr2O7 solution would require 25ml of 0.12M solution of Fe2+.

In the periodic table metals are placedon the left HAND SIDE and centre whereas non-metals are placed onright side of periodic Table. The metals and non-metals are separated by THEELEMENTS which show the PROPERTIES of both metals and non-metals and are CALLED metalloids.

The react between SULPHURIC acid and SODIUM and product is sodium SULPHATE and hydrogen gas FORMED

Full form of AMU is alighar Muslim University . this is very valuation for our jobs just because this is avery famous University.....


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-3.8 HYDROGEN ATOM of ELECTRON

MOLECULAR mass of ammonia= 14+3=17

In 1 molecule (NH3) there are 1+3=4 atoms

1 mole (17 g) has Avogadro NUMBER of molecules

17 g= 1 mole

4.25g=4.25/17=0.25 moles

1 mole = 4×6.022×10^23 atoms

0.25 or 1/4 mole =6.022×10^23 atoms.

CL- ION= 18 e-

1s² 2s² 2 3s² 3

where l=1;m=-1

% of x= MASS of x/ mass of whole compd × 100.
now TAKE variables and solve
or DIRECTLY check %X from ans

#CHLOROFLUROCARBON....

As they don't DISSOLVE in each other USE a SEPARATING FUNNEL

Here is your ANSWER in this PICTURE

0°C is the temperature at which water EXIST in solid and LIQUID both the STATES of MATER

Molar MASS of water = 18g
Mass = molar mass /AVOGADRO no.
Mass = 18/6.022 *10 to the POWER 23
= 3 * 10 to the power - 23 (approx)
Volume = mass / density
So, volume = 3*10 to the power - 23/1 g/cm
= 3* 10 to the power - 23

Hand pickings is the most EFFECTIVE WAY YET time CONSUMING

Because of CHEMICAL REACTIONS.

Ferrous SULPHATE react with ALUMINIUM and give now holes in Basil by forming a new CHEMICAL product