The acidity of normal rain water is due to
a) so2
b) co2
c) no2
d) no

SO₂

Explanation:

Acid rain is due to SO₂.

SO₂ + ½ O₂ + H2O = H₂SO₄

H₂SO₄= 2H⁺ + SO₄²⁻

Harmful pollutant in the air such as sulfur dioxide creates acid rain. SO₂ reacts with water vapor and oxygen to form sulfuric acid, which makes the rain acidic. H₂SO₄ releases H⁺ which decreases the pH of rain water. At acidic pH rainwater is harmful to both living beings and architectural objects.

a. a primary source combines several different accounts of an event. b. a primary source generally benefits from having been written after an event.

explanation:

for step 7 table c on the lab "newtons law of action"   the average time it took the car to travel .25 meters   was 1.92 seconds.

the average time it took the car to travel 0.50 meters was 2.61 seconds

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