Pure sodium metal explodes when it makes contact with water, and chlorine, in its natural state, is a deadly, poisonous gas. When these two chemicals combine, they form a harmless, white powder known as sodium chloride or table salt. Which of the following statements does this information support?

Question

anonymous · Answer

When substances are chemically combined, the properties of the new substances that are formed are often different from the properties of the original substances.
Heat must be added in order to change the chemical properties of substances.
When substances are chemically combined, the properties of the new substances that are formed are the same as the properties of the original substances.
The properties of substances change during chemical reactions but then later go back to their original condition

anonymous · Answer

whats the answer