| 重 |
chóng tàn suān gài | calcium bicarbonate Ca(HCO3)2 |
| 重 |
chóng | to repeat / repetition / again / re- / classifier: layer |
| 重 |
zhòng | heavy / serious / to attach importance to |
| 碳 |
tàn | carbon (chemistry) |
| 碳 |
tàn suān | carbonic acid / carbonate |
| 碳 |
tàn suān gài | calcium carbonate |
| 酸 |
suān | sour / tart / sick at heart / grieved / sore / aching / pedantic / impractical / to make sarcastic remarks about sb / an acid |
| 钙 |
gài | calcium (chemistry) |