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chemistry

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rubidium is the fourth element in group 1. predict the following properties of rubidium and its compunds:
A. appearence
B. hardness
C. reaction with water
D. appearance and solubility of rubidium chloride
E. electrical conductivity

  • chemistry - ,

    Look at the properties of the other elements that you know in group 1. Rb should be similar. For example, D. I now NaCl is a white crystalline solid that is soluble in water. I would expect RbCl to be the same.

  • chemistry - ,

    if i am wrong correct me- it is very hard to cut
    its reaction with water is vigorous
    its appearance-stored in oil white solid lump

  • chemistry - ,

    The reaction with water is vigorous.
    The appearance stored in oil should be a silvery solid
    but the first one is not correct. Sodium is a soft silvery metal. I would expect Rb to be a soft silvery metal also. It is easily cut into small pieces with a pocket knife.

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