(ii) Sodium + Water --> Sodium hydroxide + Hydrogen Ans: 2Na (s) + 2H2O (liq) → 2NaOH (aq) + H2 (g). Q.3. Write a balanced chemical equation with state symbols for the following chemical reactions: (i) Solution of barium chloride and sodium sulphate in water to give insoluble barium sulphate and the solution of sodium chloride. Ans:- (i) BaCl2 (aq) + Na2SO4 (aq) →BaSO4 (s) + 2NaCl (aq) (ii) Sodium hydroxide solution (in water) react with hydrochloric acid solution (in
Premium Hydrochloric acid Hydrogen Chlorine
Nomenclature for Ionic Compounds Ionic compounds consist of cations (positive ions) and anions (negative ions). The nomenclature‚ or naming‚ of ionic compounds is based on the names of the component ions. Here are the principal naming conventions for ionic compounds‚ along with examples to show how they are used: Roman NumeralsA Roman numeral in parentheses‚ followed by the name of the element‚ is used for elements that can form more than one positive ion. This is usually seen with metals. You
Premium Ion Molecule
lala clams‚ blood cockles‚ mussels‚ prawns‚ crayfish and flower crab. They will then be immersed in diluted sodium hydroxide at 85 celcius. Next‚ the shells are then washed with di-ionized water and demineralized to remove calcium carbonate by treating them in diluted hydrochloric acid at room temperature. In the 2nd phase‚ chitin will then be dissolved in less than 40% of Sodium Hydroxide‚ and heated to 90celcius which will convert the Chitin into Chitosan upon dissolving. The third phase will take
Premium Bacteria Marine biology Agar plate
capping is less common and less invasive than the pulpectomy. There is no long recovery or sensitivity like with root canal treatment or need for crown‚ because the pulp stays vital. Pulp capping is practically application of protective layer‚ such as calcium
Premium Dentistry Teeth Dental implant
the red-spot nucleus can be seen clearly when it is stained with aceto-orcein solution. The last experiment is to test the existence of proteins in cooked egg white. If protein is present in cooked egg white‚ the transparent solution of sodium hydroxide and cooked egg white will turn into purple when it is mixed with copper sulfate solution. Therefore‚ all macromolecules exist in all given samples. Introduction Macromolecules are large organic molecules which can be categorized into four major
Premium Starch Carbohydrate Chemistry
these foods contain fibre‚ calcium‚ iron and B vitamins. Most people don’t eat enough fibre. Foods rich in fibre are a very healthy choice‚ so try to include a variety of fibre-rich foods in your diet. These are all rich in fibre: wholegrain bread‚ brown rice‚ pasta‚ oats‚ beans‚ peas‚ lentils‚ grains‚ seeds‚ fruit and vegetables Meat Meat is a good source of iron‚ zinc‚ B vitamins (particularly B12) and protein. But meat is also a major source of saturated fat‚ which we should be
Free Nutrition Milk Cheese
Revision checklist for IGCSE Chemistry 0620 A guide for Students Revision checklist for IGCSE Chemistry 0620 A guide for students How to use this guide The guide describes what you need to know about your IGSCE Chemistry examination. It will help you to plan your revision programme for the theory examinations and will explain what the examiners are looking for in the answers you write. It can also be used to help you to revise by using tick boxes in Section 3‚ ‘What you need to know’‚ to check
Premium Oxygen Sodium chloride Chemistry
(3CaOAl2O3)‚ and a tetra-calcium aluminoferrite (4CaO Al2O3Fe2O3). In an abbreviated notation differing from the normal atomic symbols‚ these compounds are designated as C3S‚ C2S‚ C3A‚ and C4AF‚ where C stands for calcium oxide (lime)‚ S for silica‚ A for alumina‚ and F for iron oxide. Small amounts of uncombined lime and magnesia also are present‚ along with alkalies and minor amounts of other elements Hydration. The most important hydraulic constituents are the calcium silicates‚ C2S and
Premium Portland cement Cement Concrete
making the dome part properly (read more about heat differences in materials - basically it deals with shrinking of cooled down edges and also surfaces while middle’s still hot expanded). It would be a wise idea to mix heat resistant cement‚ e.g. Calcium Aluminate cement‚ with firebrick grog. The grog comes basically from crushed firebrick/s. Companies who manufacture refractory material (like Claypave Pty. Ltd. in Dinmore‚ Qld. Au.)‚ or those who only resell firebricks‚ usually sell also firebrick
Premium Management Learning Cognition
LOTIONS Calamine Lotion Composition: calamine 8 g‚ zinc oxide 8 g‚ glycerin 2 mL‚ Avicel R Gel 2 g‚ carboxymethylcellulose (CMC) 2 g and calcium hydroxide solution about 50 mL. Procedure (1) Disperse Avicel R into 55 g of water to form a gel‚ (2) Mix the calamine‚ zinc oxide with the glycerin‚ the gel and the CMC‚ (3) Add sufficient amount of calcium hydroxide solution to make the final volume of 100 mL Calamine (Topical) Category: Skin protectant—{01}{09}{12} antipruritic (topical){02}{04}{08}—
Premium