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Answer:The flame symbol. It represents a SUBSTANCE inside the box or WHEREVER the symbol is, it means that it is flammable or MAY RELEASE flammable gas o… See moreExplanation:

tion:PREPARATION and Standardization of 0.05 M IodineDissolve about 14 G of iodine in a solution of 36 g of potassium iodide in 100 ml of water.Add three drops of hydrochloric acid and dilute with water to 1000 ml.Standardize the solution in the following manner.

a)NaHCO³b)FE SO⁴c)AIND)K²SO⁴e)NH⁴Clf)PB(NO³)²

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:-Mass by mass PERCENTAGE of urea in the SOLUTION is 5 % .EXPLANATION :-We have :-→ Mass of urea = 5 g→ Mass of water = 95 g________________________________Here, urea is the solute and water is solvent. In order to find required concentration, FIRSTLY we have to calculate total mass of the solution .Mass of solution :-= Mass of solute + Mass of solvent= (5 + 95) g= 100 gConcentration (mass/mass %) :-= Mass of solute/Mass of solute × 100= 5/100 × 100= 500/100= 5 %

Fajans' RULE states that a compound with LOW positive charge, LARGE cation and small anion has ionic bond where as a compound with high positive charge, small cation and large anion are COVALENTLY bonded. For high charge, small cation will have more polarizing power. ... This MAKES the anion easily polarizable.Explanation:MARK ME BRAINEST

The mass of residue, is CH 3 COONA solution, should be 24G of CH 3 COONa solution.In this reaction, sodium bicarbonate reacts with acetic acid to produce sodium ACETATE, carbon dioxide and waterNaHCO 3 +CH 3 COOH⟶CH 3 COONa+CO 2 +H 2 OAccording to law of conversation of masses,TOTAL masses of reactants = total masses of productsreactants are 8.4g NaHCO 3 and 20g CH 3 COOH.total mass of reactants is =28.4gmass of residue = (28.4g reactants mass) − (4.4g CO 2 ) = 24.0g residue (sodium acetate solution)mass of residue is thus 24 GRAMS.

Metals in the DECREASING order of their chemical reactivity PLACING the most ACTIVE first. The metals are Cu, Mg, Fe, Na, CA, Zn.therefore, There is the order of reactivity of metals and in order to remember this order, one has to recite this order in any possible simple form. The order of reactivity of metals is as follows, Copper > Magnesium > Iron > SODIUM > Calcium > Zinc. Explanation:please mark me as brainliest.

11.2LExplanation:Volume of H_(2) gas occupied by its one EQUIVALENT at S.T.P. is. =11.2L at S.T.P.

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टेफ्लान या पॉलीटेट्राफ्लूरोएथिलीन (POLYTETRAFLUOROETHYLENE – PTFE) एक संश्लेषित फ्लूरो-बहुलक है। PTFE बहुत ही कठोर पदार्थ है। इस पर ऊष्मा, अम्ल तथा क्षार का प्रभाव नहीं पड़ता है। टेफ्लॉन विद्युत धारा का कुचालक होता है।Explanation:PLEASE AAD me your BRANLIEST

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Rancidity, condition PRODUCED by AERIAL OXIDATION of unsaturated fat present in FOODS and other products, marked by unpleasant odour or flavour. ... Saturated fats such as beef tallow are resistant to oxidation and seldom become rancid at ordinary temperatures.Explanation:hope this helps you pls mark as brainlist

Complete step by step answer: - The electrolysis of water in the form of a chemical REACTION is as follows. - In electrolysis of water HYDROGEN and oxygen gases are RELEASED. (a) The gas which is released at cathode is hydrogen, ${{H}_{2}}$ and the gas released at anode is oxygen,EXPLANATION:MARK ME AS

In the inverted U-tube DIFFERENTIAL manometer, SPECIFIC GRAVITY of manometric fluid USED is less than relative to the fluid flowing in the pipes as the manonmetric fluid is at the top.

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Other than this, the symmetry of the molecule, total NUMBER of atoms, total number of identical atoms around the central atom, number of lone pairs of electrons, and OVERALL shape of the molecule will decide whether it's polar or non-polar. LINEAR MOLECULES, with disparate electronegativity values are GENERALLY polar.

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tion:Brass is an alloy of copper and ZINC, in proportions which can be varied to achieve VARYING mechanical, electrical, and CHEMICAL properties.Mark BRAINLIST ANSWER

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Metals are generally shiny, malleable, and HARD. Metals are also good conductors of electricity.Non-metals do not CONDUCT heat or electricity very well. METALLOIDS share characteristics of both metals and non-metals and are also called semimetals.Hope you understandPlease MAKE it a BRAINLIST answer

tion:without anyone or anything else : not INVOLVING or INCLUDING anyone or anything else : separate from other PEOPLE or things. : without people that you know or that USUALLY are with you. : feeling unhappy because of being SEPARATED from other people.

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Ca (OH) 2 + 2HNO 3 → Ca (NO 3) 2 + 2H2O CALCIUM hydroxide react with NITRIC acid to produce calcium nitrate and water.

an increase in enthalpyExplanation:because when solid melts the FREE ENERGY which is already stored as HEAT as a result the changing of solid to liquid results in INCREASES enthalpy

The atomic masses of ALUMINUM (Al), sulfur (S) and oxygen (O) are 27, 32 and 16, RESPECTIVELY. Thus, oxygen CONTRIBUTES about 56% of mass to aluminum sulfate. SIMILARLY, sulfur contributes 28.1% (96/342 x 100) and aluminum contributes 15.8% to the total mass of aluminum sulfate

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There is a relationship between the electron CONFIGURATION of an element and its RESULTING chemical/physical properties. Atoms of an element like to have a full octet of electrons in their valence shells. This corresponds to full s and P ORBITALS and is a very energetically stable configuration.