C5 - Chemical changes

Metal + Oxygen = ???

Metal + Oxygen = ???

Metal Oxide

??? + Oxygen = Metal Oxide

Metal

Metal + Acid = ??? + oxygen

salt

metal + ??? = salt + oxygen

acid

Metal oxide + acid = ??? + water

salt

??? + acid = salt + water

metal oxide

acid + alkali = salt + ???

water

acid + ??? = salt + water

alkali or base

acid + base = salt + ???

water

Is oxidation loss or gain or electrons + hydrogen

-gain of oxygen

-loss of hydrogen

Is reduction loss or gain or electrons + hydrogen

-loss of oxygen

-gain of hydrogen

Is this reaction oxidation or reduction

Na → Na^+ + e-

Oxidation - Because sodium is losing an electron and becomes 1+

aqueous solution defnition

a lil smthn smthn disolved in water as as solution

Do acids produce H^+ or OH^-

( in aqueous solutions )

H^+

Do alkalis produce H^+ or OH^-

( in aqueous solutions )

OH^-