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  SkillfulGrasshopper3789

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  Secondary IV • 3yr.

  hi!

  
  

  Why can several pH indicators be used in an experiment? How can the appropriate one be determined? Thank you :))

  Chemistry

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  1 answer
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  FairTangerine2097

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  Secondary IV • 3yr.

  Hello,

  Could you explain to me what the molar mass is? I can't quite understand.

  Thank you so much!

  Chemistry

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  1 answer
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  FairTangerine2097

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  Secondary IV • 3yr.

  Helloo, what is the difference between a mole and the Avogadro number?

  Thank you!

  Chemistry

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  1 answer
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  FairTangerine2097

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  Secondary IV • 3yr.

  Hello,

  I have trouble differentiating between exothermic and endothermic reactions according to their enthalpies. Do you have any tips or summaries?

  Chemistry

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  1 answer
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  FairTangerine2097

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  Secondary IV • 3yr.

  Hello,

  I am having difficulty understanding how the thermal energy formula works. Could you explain to me, please?

  Thank you so much!

  Chemistry

  0

  1 answer