Na2SO4(aq) +CaCl2(aq). CaSO4(s) + 2NaCl(aq) Ionic Equation:
2Na+ (aq) + SO2 (aq) + Ca2+ (aq) + 2C1- (aq) –
CaSO4(s) + 2Na+(aq) + 2C1- (aq)
Recall that spectator ions are ions present in
solution that do not participate directly in the
reaction. What are the spectator ions in this
reaction?
A. Ca2+ and SO2 B. Na+ and SO
C. Na+ and CI D. Ca2+ and CI-

Na2SO4(aq) +CaCl2(aq). CaSO4(s) + 2NaCl(aq) Ionic Equation: 2Na+ (aq) + SO2 (aq) + Ca2+ (aq) + 2C1- (aq) – CaSO4(s) + 2Na+(aq) + 2C1- (aq) Recall that spectator ions are ions present in solution that do not participate directly in the reaction. What are the spectator ions in this reaction? A. Ca2+ and SO2 B. Na+ and SO C. Na+ and CI D. Ca2.

Explanation:

organisms are more likely to be more preserved in mud than sand because mud is moist and wet, while sand is very dry.

acid rain does not usually kill trees directly. instead, it is more likely to weaken the trees by damaging their leaves, limiting the nutrients available to them, or poisoning them with toxic substances slowly released from the soil. the main atmospheric pollutants that affect trees are nitrates and sulphates.