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Uun, Uuu, Uub all are IUPAC nomenclature of 110, 111, 112 respectively. You will this in this concept.
Because all elements are different from each other in respective their mass, number of electrons, atomic number, etc. Every element has a unique and different properties.
Nitrogen is more stable than Oxygen due to half-filled electrons in Nitrogen.

A Ankit Dutt
Hard water has various soluble salts of magnesium and calcium due to which the soaps are not able to form lather whereas soft water does not have these salts thus soaps make lather in soft water.

Molarity/valency=normality

A Ankit Dutt
Limiting reagent is a reactant in any chemical reaction that gets consumed completely in the reaction.

A Ankit Dutt
Empirical formula is the simplest ratio of atoms present in the molecule like CH2O while the molecular formula is the representation of the actual number of atoms present in the molecule.

A Ankit Dutt
Equivalent weight is calculated by the molar weight divided by the n-factor. This n-factor can be valency, charge, acidity, basicity, etc.

A Ankit Dutt
A mole is a number whose value is equal to

A Ankit Dutt
Atomic mass is the mass of a single atom or in other words, it is equal to the number of protons and neutrons. Molecular mass is the mass of all the atoms combined in the molecule.

A Ankit Dutt
There are various drawbacks of Dalton's Atomic Theory: (i) It failed to explain anything about the structure of the atom. (ii) It failed to explain how atoms of different elements combine and form molecules. (iii) It failed to explain any distinction between atoms and molecules. (iv) He proposed that atoms are indivisible but now it is false as atoms are further divided into electrons,...
• Solid
• Liquid
• Gas
• Plasma
• Bose-Einstein condensate
• Excitonium
• Degenerate matter
• Photonic matter
• Quantum
• Superconductor
• Superfluid
• Supersolid
• Quark-gluon plasma
• Time crystals

A Ankit Dutt
Ans. The International System of Units or SI unit is important in science and technology as it provides a consistent system of units for all types of quantities like length, weight, temperature, etc.

A Ankit Dutt
Milk is a heterogeneous mixture because its components like proteins, carbohydrates, fats, etc are present in the non-uniform composition.

A Ankit Dutt
It was discovered by measuring the 12g of C-12 carbon isotope. The number of atoms of carbon in this quantity was 6.022 x 1023. This number was known as Avogadro number.
All three use in a different place.

R rishi raj
Yes. There are five known Phases or States of the matter: solids, liquids, gases, plasma, and Bose-Einstein condensates. You will study these in higher classes.
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N Nisha Shantaram kumbharkar

1

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