Column A Column B
1.
K, CO3(aq) + BaCl2(aq) → BaCO3(?) + 2KCI(7)
a. Reaction will occur
b. No Reaction
2. 2KNO3(aq)
2KNO3(aq) + Cal2(aq) → Ba(NO3)2() + 2KIC)
3. Na2SO4(aq) + Sr(CIO3)2(aq) - SrSO4(7)
2 NaClO3(7
+
4.
Na Sem) +
2NaOH(aq) + Cas(aq)
2Ca(OH)2(7)

Can someone me with 3 and 4 plz. this is for masteries test.

Determine the ph of 0.10 m nh3 solution. nh3 is a weak base with a kb equal to 1.8 x 10-5 round answer to nearest whole number.

27 drag each label to the correct location on the image. a particular exosolar system has five planets in total: a, b, c, d, and e. the table lists the orbital periods of these planets in days. planet orbital period (days) a 600 b 80 c 1,000 d 500 e 100 move each planet to its orbit in the system.