Question 16 (3 marks) (a) Write the word equation for potassium reacting with water forming an aqueous solution. (1 mark) potassium + water â potassium hydroxide + hydrogen (b) Write the balanced formulae equation for (a) including states/phases.(2 marks) 2K (s) + 2H 2 O (l) â 2KOH (aq) + H 2 (g) âº One mark for balanced equation + one mark for correct states.his shows that water is made up of more than one type of atom. (1 mark) âº The two substances obtained were in definite ratio of 2:1 as shown by the 2:1 ratio of the gas volumes. (1 mark) (ii) State another observation that shows that electrolysis is a chemical change.
tr.v. colÂ·latÂ·ed, colÂ·latÂ·ing, colÂ·lates. 1. To examine and compare carefully in order to note points of disagreement. 2. To assemble in proper numerical or logical sequence.
The COLLATE clause can be applied only for the char, varchar, text, nchar, nvarchar, and ntext data types. COLLATE uses collate_name to refer to the name of either the SQL Server collation or the Windows collation to be applied to the expression, column definition, or database definition.