Ukrainian President Volodymyr Zelenskyy has criticised the US for its weak reaction to Russia's missile strike in Ukraine, which killed 18 people, including nine children, in Kryvyi Rih.

The process of carrying out a titration allows us to accurately measure the volumes of an acid and an alkali required for neutralisation. An indicator will be used to determine the exact volume ...

A boric acid eye wash can be effective for flushing eyes exposed to grit or other foreign objects. You can also use it to ease dry, irritated, or burning eyes. Boric acid eye washes have antiseptic ...

The Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba 277-8581, Japan ...