Which of the following statements about a compound is true? A. The physical and chemical properties...

Which of the following statements about a compound is true?

A. The physical and chemical properties of a compound are usually very different from those of the elements from which it is formed.

B. Only the physical properties of a compound are usually the same as those of the elements from which it is formed.

C. Only the chemical properties of a compound are usually the same as those of the elements from which it is formed.

D. The physical and chemical properties of a compound are usually the same as those of the elements from which it is formed.

Solutions

Expert Solution

Answer:

A. The physical and chemical properties of a compound are usually very different from those of the elements from which it is formed.

Explanation:

If elements react together to form a compound, the properties of compounds are very different from those of the constituent elements. The reason is that a compound is made of different particles than those in the elements. A simple example is hydrogen and oxygen.The elements are both invisible gases at room temperature. Hydrogen is explosive, and oxygen makes things burn. If you mix them you still have invisible gas, and the mixture is dangerously explosive. The particles are separate H2 and O2 molecules.If you make a compound between them, water, you have a liquid at room temperature, which puts fires out. The particles are H2O molecules. Remember, the numbers must be subscripts.

gladiator answered 1 year ago

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