Question

select the correct answer. samuel adds a teaspoon of salt to a glass of water. he notices that the salt disappears. samuel takes a sip to discover that the water tastes salty. what kind of change has occurred? a. its a chemical reaction because a new substance has formed. b. its a physical change because the water and the salt kept their original properties. c. its an example of synthesis because two substances reacted to give one substance. d. its a chemical reaction because the water now tastes salty but originally did not.

Explanation:

When salt dissolves in water, no new substance is formed. The salt can be recovered by evaporating the water, and both salt and water retain their original properties, characteristic of a physical change.

Answer:

B. It's a physical change because the water and the salt kept their original properties.