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When sodium and chlorine reacts then: (1) Energy is released and ionic bond is formed (2) Energy is released and a covalent bond is formed (3) Energy is absorbed and ioni
Q. Show the Properties of Matter? Each of the material the stuff around us is matter. A substance is matter which has a uniform and unchanging composition. For instance water
photochemical combination of hydrogen molecule and iodine molecule
Which one of the following groupings represents a collection of isoelectronic species: (1) NA +, Ca 2+ , Mg 2+ (2) N3, F - , Na + (3) be, Al 3+ , Cl -
how vulcanisation does changes the chareter of natural rubber
how to find it
Why Microwave performed at low temperature and low pressure
What is hydrometallurgy
As electron moves away from the nucleus, its potential energy: (1) Increases (2) Decreases (3) Remains constant (4) None of these Ans: Increases
Q. What do you mean by Isotopes? Isotopes and mass number although all atoms of an element have the same number of protons most elements have atoms with different numbers of ne
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