What is the missing substance in the neutralization reaction below? + Mg(OH)2 → Mg(NO3)2 + 2H2O

What reaction is taking place? 02 + c3h8 = h20 + co2

Which of the following has wavelength longer than the wavelength of viable light? a) x rays b) gamma rays c) radios waves d) ultraviolet waves

Which symbol can be used to indicate the pressure at which a chemical reaction is carried out? 25°c 2 atm pa