How many grams of calcium chloride are needed to produce 1.50 g of potassium chloride? CaCl2(aq) + K2CO3(aq) 2 KCl(aq) + CaCO3(aq)
A) 0.896 g
B) 1.12 g
C) 2.23 g
D) 4.47 g
Question 2
The coordination number of platinum in complexes is always ________.
A) 4
B) 5
C) 2
D) 3
E) 6