Four properties of water are listed. 1. it reacts with halogens to form oxygen gas as one of the products. 2. it is transparent and tasteless in its pure form. 3. it freezes at a temperature of 0 °c and lower. 4. it decomposes to form hydrogen and oxygen. which are the chemical properties of water? a. 1 and 2 b. 1 and 4 c. 2 and 3 d. 3 and 4

B. 1 and 4

Explanation:

Chemical properties are those that cause the substance that reacts to undergo a chemical change. The product formed has completely different chemical property than the reactant. In a physical change the substance undergoes a physical change such as phase transition. In a physical change no new chemical substance is formed.

the population of unionid mussels in the hudson river decreased after zebra mussels were introduced. zebra mussels, a nonnative species, competed with the unionid mussels for food. the zebra mussels were able to outcompete the unionid mussels, allowing the zebra mussel population to increase dramatically over six years. the unionid mussel population decreased due to a lack of food.

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