Free to whoever answers first :0

Answer asap need it by wednesday morning calculate the ph of 0.02m hcl best answer will be brainliest

Apropane torch is lit inside a hot air balloon during preflight preparations to inflate the balloon. which condition of the gas remains constant

Which of the following is a physical change? a.burning a piece of wood b.sawing a piece of wood in half c.rust forming on an iron fence d.a copper roof changing color from orange to green