Yes, you're right the answer is 0,02 moles.
Answer is (3) both mass number and atomic number.
The notation is ₅₅¹³⁷Cs. The Cs represents the chemical symbol of Caesium element. The subscript number at the left hand side of the symbol indicates the atomic number. Hence, atomic number of Cs is 55. The superscript number at the left hand side of the symbol shows the mass number. Hence, the mass number of the Cs is 137.
Lower than 7 is acid greater than 7 is a base
Answer:
AgC2H3O2 is: Silver acetate
