Question

Giovanni created this chart to study for an exam. Which best describes how to correct the error in the chart? Remove “plastics” from the uses for sodium hydroxide. Swap the uses for iron oxide and calcium carbonate. Change the use for calcium chloride to “used in preservatives.” Add “de-ice roads” to uses for calcium carbonate.

Answer 1

the answer is swap the uses for iron oxide and calcium carbonate. on edg

Answer 2

Calcium carbonate when mixed with water result in the formation of Calcium hydroxide which is used as an antacid. The chloride ion also helps in the whitening of teeth thus finding its use as an ingredient in toothpaste.

Iron oxide is dark pigment which is naturally used in makeup.

Therefore the answer to this question is Swap the uses for iron oxide and calcium carbonate.