Assertion – While writing chemical equations, hydrogen, oxygen, nitrogen and chlorine are written in molecular form. Reason – The valency of the hydrogen and chlorine is 1, oxygen is 2 and nitrogen is 3

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.

What is the number of moles of chemical units represented by 9.03x10^24? and how do i show work? (dumb it down )

When electrolyzing copper (ll) chloride, what reaction takes place at the anode? what reaction takes place at the cathode?