Give two examples of the substances which expand on heating.
Iron and water expand on heating.
Give two examples for each of the following :
(a) The substances which sublime.
(b) The substances which do not change their state on heating.
Which of the following substances expands/contracts negligibly on heating?.
Question 15
Give one example in each case. Change which occurs on heating but can be reversed. Change which occurs on heating but cannot be reversed. Change which occurs on cooling but can be reversed. Change which occurs on mixing two substances but can be reversed. Change which occurs on mixing two substances but cannot be reversed.