Std 10th sub chemistry

ncert cource

What are amphoteric oxides ? Give two examples of amphoteric oxides ?

Which statement accurately describes the relationship between air pressure, air density, or altitude? as altitude increases, pressure increases. as altitude increases, air density increases. air pressure and density are lowest at sea level. denser air exerts more pressure than less dense air.

Complete the following reactions using word and balanced equations including states. dilute phosphoric acid is added with a calcium hydroxide solution.

If a solution had a ph of 7 what is the solution