PPT-Reactions of Alkalis

3 understand that alkalis neutralise acids to make salts 4 recall that soluble hydroxides and carbonates are alkalis Higher 5 predict the products of the reactions of soluble hydroxides and carbonates with . 1. recall that, even before industrialisation, alkalis were needed to neutralise acid soils, . make chemicals . that bind natural dyes to cloth, convert fats and oils into soap and to . manufacture glass. Starter:. What ions are found in acids?. What ions are found in alkalis?. What is the chemical formula for water? . give an example of a neutralisation reaction. use a pH meter to measure pH. observe the changes in pH during a neutralisation . a pure, dry sample of a soluble salt from an insoluble oxide or carbonate, using a Bunsen burner to heat dilute acid and a water bath or electric heater to evaporate the solution.. Required practical – Use PURPLE BOOKS. A need for a chemical is identified.. A “pilot plant” is set up to find out the requirements for production.. Costs are considered and balanced with potential profit. . A proper chemical plant is built costing millions of pounds but creating a lot of jobs. . Patel Sikora. What are Alkali Metals?. The alkali metals are located in Group 1 of the periodic table. They are a series of chemical elements which have similar trends and properties. Alkali metals are so called because when they react with water alkalis (strong bases that can neutralize acids) are formed.. Synthesis reactions. Decomposition reactions. Single replacement reactions. Double replacement reactions. (Precipitate reaction). Chemical Reactions can be written as:. Word equation. Chemical equation. while alkalis produce an excess of hydroxide ions. At neutral pH 7 the two are equal. A 5% solution of baking soda in water exhibits a pH of about 8 measured by a pH meter. A solution with pH 8 is con 1. Indicators and the pH scale. Solutions can be acidic, alkaline or neutral:. we get an . acidic.  solution when an acid is dissolved in water. we get an . alkaline.  solution when an alkali is dissolved in water. The . risk for development of a drug eruption is related to the following factors: age, gender, dose, and the nature of the medication itself. . Females . are . 1.3-1.5 . times more likely to develop drug eruptions, except in children under the age of 3 where boys are more likely to be affected. . Our estimates of pressures and temperatures experienced by rocks during metamorphism are based on metamorphic reactions.. Mineral Reactions. There are two basic types of mineral reactions:. Continuous. These are the OPPOSITE of neutralization reactions (i.e. acid-base reactions). Rather than forming a salt and water from an A-B reaction, a salt and water react to form an acid and a base.. You MUST determine if you have a Strong or Weak Acid and a Strong or Weak Base.. Objective. To know about . electrophilic. substitution reactions. Success criteria. Understand . the mechanism of the . electrophilic. substitution reactions of . benzene. Understand this for . halogenation. All. chemical reactions either release or absorb energy. . The energy can take many forms: . HEAT. , . LIGHT. , . SOUND. , and . ELECTRICITY. . Chemical . bonds. are the source of this energy. . Write your answer in your. . science journal.. Quiz. 1. How . many molecules of oxygen gas in the reactant (O. 2. ) are needed to balance this equation?. CH. 4. + O. 2. → 2CO. 2. + 4H. 2. O.