Write balanced chemical and ionic equations when reactants and products are specified, using state symbols and the smallest whole-number coefficients, and interpret the coefficients as mole ratios.
(i) Suggest, giving a reason for each, two different safety precautions that should be taken when carrying out either of these preparations. (ii) Deduce the coefficients needed to balance the following equation for the reaction of silver with concentrated…
(i) Write a balanced equation, with state symbols, for this reaction. (ii) Deduce which of the two reactants runs out first, that is, which one limits the reaction. Use sections 1, 4 and 7 of the data booklet. (iii) Calculate the volume, in ,…
In the atmosphere, nitrogen dioxide combines with rain water and oxygen to give nitric acid. State the equation for this reaction, including state symbols.
What is the coefficient of oxygen when the equation for the complete combustion of butan-1-ol is balanced using the smallest whole numbers? The unbalanced equation is . A. 4 B. 6 C. 7 D. 13
In the Claus process, used to recover sulfur from refinery gases, sulfur dioxide reacts with hydrogen sulfide, , to form sulfur. (i) State the oxidation state of sulfur in and in the sulfur produced. (ii) Deduce the balanced equation for…
When the equation for the complete combustion of 1 mol of pentan-1-ol, , is balanced, what is the sum of all the coefficients? Unbalanced equation: A. 19 B. 19.5 C. 20 D. 39
Bathers release nitrogen-containing compounds, including ammonia, into the pool water. Ammonia reacts with hypochlorous acid to form chloramines. (i) Deduce an equation for the reaction of ammonia with hypochlorous acid that forms trichloramine,…
Complete combustion turns pentadecane entirely into carbon dioxide and water. Write the corresponding balanced equation.