Answer:
Water boils - physical change
Salt dissolves in water- chemical change
Milk turns sour- chemical change
metal rusts - chemical change
Explanation:
A chemical change refers to changes that are irreversible and the process involves the evolution of heat along with the formation of a new substance, examples include;Salt dissolves in water, Milk turns sour, metal rusts etc
The boiling of water is a physical change. The water can be cooled and the vapour condensed,hence, the boiling of water is a physical change.
Physical changes are easily reversible and no new substance is formed.
He would have concluded that the order of operations would be different. This therefore would affect the periodic table's order.
Summer days are warmer because the path of the sun is longer and we have more direct sunlight during that time
Ah is gold and Rh is rhodium and Os is osmium and Ir iridium
