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Oblivious-Me

  • 4 years ago

Photosynthesis is ___________ reaction, because it needs sunlight to proceed. A. an exothermic B. an electric C. an endothermic D. a combustion

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  1. Stroodle
    • 4 years ago
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    C

  2. Oblivious-Me
    • 4 years ago
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    thanks!!

  3. Oblivious-Me
    • 4 years ago
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    Which of the following takes place during a single displacement reaction? A. a complex substance breaks down into two or more simple substances B. a single substance replaces another substance in a compound C. two simple substances combine to form a new complex substance D. parts of compounds switch places to form two new compounds ?

  4. 5369855
    • 4 years ago
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    For sure C

  5. 5369855
    • 4 years ago
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    for the first question

  6. bnut056
    • 4 years ago
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    like a simple substance like NaCl +Mg2+=Mg(Cl)2 +Na+ this is a single displacement i would say B for the second one

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