But when the water has impurities in it, the carbon dioxide molecules tend to come out of solution as gas bubbles at those impurities.
(the water; has; impurities in it) (the carbon dioxide molecules; tend; to come out of solution as gas bubbles at those impurities; T:when the water has impurities in it) (the carbon dioxide molecules; to come; out of solution as gas bubbles at those impurities)
the water the carbon dioxide molecules the carbon dioxide molecules
has tend to come
impurities in it
to come out of solution as gas bubbles at those impurities T:when the water has impurities in it
out of solution as gas bubbles at those impurities