Borax exists in nature as:
Correct answer: A. Na2B4O7.10H2O
- A. Na2B4O7.10H2O
- B. Na2B4O7.7H2O
- C. Na2B4O7.5H2O
- D. Na2B4O7.3H2O
- E. Na2B4O7.H2O
Explanation
Na2B4O7.10H2O . This is just a fact that should be recalled in the exam. Borax, also called sodium tetraborate, is a powdery white mineral that has been used as a cleaning product for several decades. It has many uses: It helps get rid of stains, mold, and mildew around the house. It can kill insects such as ants.
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About Periodic Properties and Trends
Periodic properties arise from electron configuration and effective nuclear charge, producing trends in atomic and ionic radius, ionization energy, electron affinity, electronegativity, metallic character and reactivity. Comparisons run across periods and down groups, with attention to common exceptions. The topic also relates these trends to the behavior of s-block and p-block elements.
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