Explore topic-wise InterviewSolutions in Current Affairs.

When WATER ADDED to acid, then exothermic REACTION TAKES place, blasts

FLOW of matter DUE to it contain ENERGY in it which is more than gravitatioal FORCE between the molecle

2AgNO3+CU---->Cu(NO3)2+2Ag

क्लोरीन_ ऑक्सीजन _क्लोरीन

It can TRUST in the THINGS which are made up of METAL
also it can causes disease or HAZARDOUS problems
non metal is SUBSTANCE that carries an acidic function
so I hope will you help this answer

For 1 mole of H2O2 DECOMPOSITION according to the equation given in question , 1e is lost nd 1e is gained bcoz it is a disproportionation REACTION in which same element undergoes OXIDATION and reduction simultaneously .

ATOMIC MASS/weight = no. of atoms÷NA×molar mass

If a GAS cylinder is not delivered on TIME then we should visit the gas station and COMPLAIN to the head...

You can just see all the resonating structure OTHERWISE COMPLETE OCTATE of EVERY element.

Hey
here's ur ANSWER
Photo decomposition: When a SINGLE compound breaks down into simple elements or compounds in the PRESENCE of LIGHT is known as photo decomposition reaction.

A skeleton equation is just a way of USING the FORMULAS to indicate the chemicals that were involved in the chemical reaction. "Mg + O2 MgO." This skeleton equation shows that magnesium reacts with OXYGEN to form magnesium OXIDE.

The CHEMICAL FORMULA of CALCIUM CHLORIDE is CaCl₂

Hope it HELPS!!

NaCl dissociates in a 1:1:1 RATIO according to the equation:

NaCl --> NA+ + CL-

So, based on this ratio if you have 0.2 molar NaCl you will get 0.2 molar Na+ and Cl-. The 1:1:1 ratio means that the molarity of each of the ions will be the same as the molarity of NaCl.

Contrast this to the SITUATION for MgCl2. This dissociates in a 1:1:2 ratio:

MgCl2 --> Mg2+ + 2Cl-

In this case if you have 0.2 molar MgCl2, it will dissociate to give 0.2 molar Mg2+ but 0.4 molar Cl- because there are twice as MANY Cl- ions as MgCl2 particles.

The substance which always have a same COLOUR .TASTE or TEXTURE at a given temperature and pressure are pure substance they consist of single type of particle

Hey,

No. of PROTONS = 35 .

No. of neutrons = (80-35) = 45 .

No. of electrons = 35 .

HOPE THIS HELPS YOU BUDDY!!
TAKE CARE ALWAYS :):)
PLZ MARK AS BRAINLEST PLZ!!!!!!!!


YIRI ##

No it is impossible because H +ve IONS and OH -ve ions can not realised TOGETHER in aqueous solution

On heating WASHING soda gives ANHYDROUS sodium carbonate

Na2 CO3. 10H2o heate gives Na2 co3 + 10 H2O

I HOPE it helps you

As to complete OCTET they GAIN 2 electrons mean at first they have 6 electron in their valence shell. ..
HOPE it HELPS you. MARK as brainlist plz PlzZ

A specie that is formed by EITHER LOSS or GAIN of electrons

N1v1 + n2v2 = NV then 0.5 × v1 +0.1 ×V2 = 0.4 then EQ is 5v1+v2 = 4 and other eq is v1+v2 = 2 then SOLVE v1 = 1/2 L and v2= 3/2 l

ZnSO4.xH2O

The molecular mass = 65.4 + 32 + 64 + 18x = 161.4+18x

The mass of ANHYDROUS salt = 161.4

Given 18x * 100/ (161.4+18x) = 43.82

1800x = 7072.55 + 788.76x

x = 7072.55/1011.24 = 6.99 = 7

Therefore the COMPOUND is ZnSO4.7H2O

Some substances are there WHOSE solubility first increase then DECREASE with the rise in TEMPERATURE. This is CALLED ANOMALOUS solubility.

The FOLLOWING chemical reaction takes place:

Zn + CuSO₄ ---------> ZnSO₄ + Cu

The BLUE colour of the solution is due to the presence of Copper sulphate (CuSO₄);

As the reaction proceeds the Copper from CuSO₄ is slowly displaced by Zinc THUS forming ZnSO₄ which is COLOURLESS, so the blue colour disappears slowly and a colourless solution starts forming.

Hope it helps!!

METAL OXIDES are GENERALLY BASIC in NATURE

In first ORDER reaction only one REACTANT is affected
In SECOND order reaction two of the REACTANTS are affected
In endothermic rxn heat is liberated

The atomic number or PROTON number (symbol Z) of a chemical element is the number of protons FOUND in the nucleus of an atom. .... As of 2010, all elements with atomic NUMBERS 1

We can DIVIDE pure substances into two classes: elements and compounds. Pure .... b. water c. nitrogen d. SULFUR E. air f. sucrose G. a SUBSTANCE composed of molecules each of .

Diamagnetic substance are the substance those when are placed in the EXTERNAL MAGNETIC field BECOMES feebly magnetize in the direction opposite to the field.

In other words, we can see date diamagnetic substance are the substance which when placed in the external magnetic field becomes feebly repulsive .

Diamagnetic substance are the temperature independent substance and the magnetism is due to the pair of electrons revolving in opposite sense.

In this material, the electrons revolve in pair and in opposite sense such that the net magnetic moment is zero.

But when they are held in the magnetic field, then Lorentz force supports the centripetal force of one electron and oppose to the other electron and hence the magnetic moment of one electron increases and of other one decreases. And their become in and magnetic moment opposite to the applied field.

68,40,00,000 →→→ 6.84 × 10^8
If you LIKE ADD as BRAINLIEST

Coal, petrol, desel, CNG, LPG, biomass.here are some but I dont understand NAD... but again I WOULD say to check the answer from any SCIENCE BOOK...

So ,it ANSWER is 0.1

1 mole of WATER will have 6.022X1023molecules of water.
3.33 X 10 -3 mole of water will have -------MOLECULES of water.
= 6.022X1023 X 3.33 X 10-3.
= 2 X 10 21 molecule of water.


mark me as a brainly ans

The QUESTION is not CLEAR.

HERE IS YOUR ANSWER

CaCO3 molar mass is 100 u.
or it can be represented as 100 grams when it is EXPRESSED as molecular mass.

CaCO3 ---------> CaO + CO2

CO2 molar mass is 44 u, it's molecular mass is 44 grams.

This implies 100 g of CaCO3 gives 44 g of CO2.

Therefore 25 g of CaCO3 gives 44/100 * 25 = 11 grams.

One MOLE of CO2 is 44 grams.

Therefore in 11 grams of CO2 , there would be 1/44 * 11 = 0.25 moles.

one mole of CO2 occupies 22.4 L of VOLUME, therefore 0.25 moles of CO2 has a volume of 22.4 * 0.25 =
5.6 L of volume.

THANK YOU

When converting a % to other concentration UNITS, it HELPS to ASSUME that you have 100. G of the solution. By assuming

Molality=no. of MOLES of SOLUTE/weight of solvent
no. of moles of solute= 2.5/60=25/600
=1/24=0.04mol
molality=0.04×1000/75=0.53 mol/g