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Steam supply for experiments in heat
A tin with a press-on lid may be used to make a steam can. Punch two holes in the lid and solder by them one long and one short pipe as shown in the diagram. The long pipe serves as a safety valve and the short single supplies steam to the experiment (by a rubber tube attached). When the tin leaks or becomes rusty the similar lid may be transferred to a same tin.
Semi-synthetic polymers Rayon and other cellulose derivatives such as cellulose nitrate, cellulose acetate so on, are semi-synthetic polymers. These illustrated as thermoplasti
Q. Explain Pauli Exclusion Principle? When assigning electron configurations, it is essential to consider the two important principles concerning electrons in orbitals:
uses of salt
What are photochemical reactions? Explain the mechanism of the photo- chemical reaction occurring among hydrogen and chlorine gas.
Experimental evidence for the existence of the atomic nucleus comes from: (1) Millikan's oil drop experiment (2) Atomic emission spectroscopy (3) The magnetic bending of
Explain meso stereoisomer a) For a molecule to have a meso stereoisomer, it must have more than single asymmetric atom, and it must be divisible into constitutionally identical
If value of azimuthal quantum number l is 2, then total possible values of magnetic quantum number will be: (1) 7 (2) 5 (3) 3 (4) 2 Ans: 3
Conditioning The grain is conditioned to desired moisture content by the addition of water. The purpose of conditioning is to make the bran and germ pliable, thus preventing
I have 11.2 L of a gas at stp. I need to use the molar volume to find how many molecules are in that gas.
IUPAC system of nomenclature of complex compounds The naming of any organic compound relies on the name of normal parent hydrocarbon from that it has been derived. IUPAC system
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