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ChemistryChemistry
26 October, 15:00

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

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  1. 26 October, 15:02
    0
    Answer: A. When substances are chemically combined, the properties of the new substances that are formed are often different from the properties of the original substances.

    Explanation: when sodium metal combines with chlorine gas, it forms a crystalline compound known as Sodium Chloride. Thus a new compound has been formed and it can be observed that the physical properties of the newly formed compound is entirely different from the elemental states.

    Thus when 2 or more entities are combined together via the process f aby chemical change or any chemical reaction, it would lead to the formation of the new compound that would have an entirely different segment of properties than the parent elements.
  2. 26 October, 15:05
    0
    The answer is A because the information is stating that when one chemical combined with another chemical, it had new properties which is essentially answer choice A
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Home » Chemistry » 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.
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