This is the 3433rd most frequent Japanese word.
炭酸
Carbonation.
In this sentence, '炭酸' is used as part of the word '炭酸飲料' to refer to carbonated beverages, commonly soft drinks or sparkling waters.
炭酸飲料は夏にぴったりです。
Carbonated beverages are perfect for summer.
Here, '炭酸水' is mentioned specifically to refer to carbonated water, showcasing its versatility in a culinary context.
炭酸水を料理に使うことができますか？
Can carbonated water be used in cooking?
In this instance, '炭酸' is directly mentioned as a standalone noun to describe a 'carbonated' substance that was consumed, focusing on the physical characteristic of carbonation.