0.5 moles of calcium carbonate are decomposed by heating. What mass of calcium carbonate is this? You may need some of the information in the table.
Enter your answer as a number
g
Element
Relative atomic mass (Ar-)
I
1
12
O
16
No
23
Ca
40

Which best describes why nh4+ can form an ionic bond with ci-?

Match term definition ellipse a) diagonal cross section of a cylinder circle b) diagonal cross section through the widest part of a sphere sphere c) cross section parallel to the base of a cone great circle d) shape created when a semi-circle is rotated around the y-axis triangle e) perpendicular cross section of a cone

21. consider the following chemical reaction: n2+ o2 2 no if 10.0 g of n2 reacts with excess oxygen then how many grams of no can be formed? a) 10.7 g b) 21.4 g c) 32.9 g d) 42.8 g page 4 of 8