Paper 2 H - SAMPLE SET 1 Q26 Answers
26) Iron rusts when it gets wet.
(a) The word equation for rusting is
(a) The word equation for rusting is
Balance the symbol equation for the formation of rust.
(b) A 1.0 kg iron bar is left outside in the rain.
All of the iron turns to rust.
The rust forms at a rate of 60 g per day.
Calculate how long it will take for the iron bar to turn completely to rust.
Give your answer to the nearest day. [6]
All of the iron turns to rust.
The rust forms at a rate of 60 g per day.
Calculate how long it will take for the iron bar to turn completely to rust.
Give your answer to the nearest day. [6]
…………………………….. days
(Total for Question 26 = 8 marks)