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    Science Questions? Help ?

    1. All of the following are types of chemical reactions EXCEPT: A) single replacement B) combustion C) electric D) synthesis 2. What type of reaction is represented by the following equation? H2CO3 -> H2O + CO2 A) Synthesis B) Single replacement C) Double replacement D) Decomposition...
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    Physical Science Questions?

    1. All of the following are types of chemical reactions EXCEPT: A) single replacement B) combustion C) electric D) synthesis 2. What type of reaction is represented by the following equation? H2CO3 -> H2O + CO2 A) Synthesis B) Single replacement C) Double replacement D) Decomposition...
  3. U

    Physical Science Question?

    1. According to the law of conservation of mass, __________. A) mass is neither created nor destroyed in a chemical reaction B) mass is created and destroyed in a chemical reaction C) mass is only created in a chemical reaction D) mass is only destroyed in a chemical reaction 2. If you...
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