Aluminum is an amphoteric oxide, it reacts with both acids and bases.

Peroxides play an important role in chemical reactions.

In this chemistry experiment, we will learn about the dangers of cyanide compounds.

I will participate in an obstacle race this weekend.

In this situation, the proverb 'it is best to submit to circumstances' applies.

Ritsuo is my best friend.

This country values autonomy.

He chose to leave home at a young age and be independent.

He was excited to try the standing position.

He learned how to operate a cannon.