There are 2.5 oxygen for every phosphorus atom.
The 41 beside the chemical symbol of calcium signifies the mass number of the isotope which would be 41. It would be equal to the sum of the number of protons and neutrons in the atom. the number of proton is equal to every isotope calcium has which is 20. therefore the number of neutrons would be 21. since it is being states the atom is neutral, the number of electrons would be equal to protons which is 20.
Answer:
Acids:
Bases:
Explanation:
According to the Bronsted-Lowry acid-base theory, an acid is a proton donor and a base is a proton acceptor. In this case, notice that donates a proton, since after it loses a proton, it becomes a chloride anion. Therefore, is a Bronsted acid.
Similarly, is a proton acceptor and, therefore, a Bronsted base, since it becomes .
If we look at the reverse reaction, chloride can gain a proton to become , meaning it's a conjugate base.
Finally, is a conjugate acid, since it can donate a proton to chloride.
Answer:
C
Explanation:
The section C is indicating the products of the reaction
We are given a galvanic cell containing one half-cell which consists of Ag (s) and Ag+ (aq) and another half-cell that contains Cu (s) and Cu2+ (aq). The species that are produced at the electrodes under standard conditions are AgNO3 and CuNO3. <span />