Answers created by Cait_nya

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• What is 44 percent of 205?
  
• How do you write the expression for: the sum of twice a number and half the number is 10?
  
• What is a radioactive isotope?
  
• Which one of the following is a balanced equation? A. Na (s) + O2 (g) → Na2O B. Zn (s) + HCl (g) → ZnCl2 (s) + H2 (g) C. Na (s) + MgF2 → 2NaF (s) + Mg (s) D. 2Na (s) + MgF2 → 2NaF (s) + Mg (s)