Four properties of water are listed. It reacts with halogens to form oxygen gas as one of the products.
It is transparent and tasteless in its pure form.
It freezes at a temperature of 0 °C and lower.
It decomposes to form hydrogen and oxygen.
Which are the chemical properties of water?

Idon't know hope someone you

Hbr dissociates to form h+ and br-ca(oh)2 dissociates to form ca2+ and 2oh-the h+ and oh- react to form waterassuming the reactants are dissolved in water, the net reaction is h+ + oh- —> h2oif you’re asked to show all components of the reaction, the complete reaction is 2hbr + ca(oh)2 —> cabr2 + 2h2o

Not a  mixture of two common elements that can be separated by physical means.

Answeropposite;