Question

what is the charactersitics​

Answer 1

Answer:

here's it

Explanation:

CO2 : colorless gas that turns lime water milky

SO2 : a gas with a suffocating smell that also turns lime water milky and turns acidified K2Cr2O7 paper from orange to clear green

O2 : a clorless fgas that supports combustion and rekindles a glowing splinter

h2 : a colorless gas that doesnt support combustion but burns with a pale blue flame in an atmosphere of pure oxygen