Which of these are spectator ions in the chemical reaction shown below? (2 Points)
2NaOH(aq) + CuCl2(aq) + 2NaCl(aq) + Cu(OH)2 (s)
Oci (aq)
OH(aq)
O Na+ (aq)
O Cu2+ (aq)

Calculate the expected ph values of the buffer systems from the experiments (a, b,c, d), using the henderson- hasselbalch equation, ph-pka+log[a-]/[ha]. use for pka values carbonic acid= 6.37, and acetic acid= 4.75.

The mass of a neutron is equal to the mass of a proton plus the mass of an electron. true or false false true

Name the element in group 17, period 2. (periodic table)