Science Chapter 1: Chemical Reactions and Equations

Vocabulary flashcards covering chemical reactions, cleaning of magnesium ribbon, and balanced chemical equations with state symbols based on the Chapter 1 lecture notes.

Magnesium

A very reactive metal like ($Na$, $Ca$, etc.) that forms a stable layer of magnesium oxide ($MgO$) on its surface when exposed to air.

Sand paper

Material used to clean the magnesium ribbon before burning to remove the stable magnesium oxide layer so the underlying metal can react.

Magnesium oxide ($MgO$)

A stable layer formed on the surface of magnesium that prevents further reaction of the metal with "Oxigen".

Magnesium and "Oxigen" Reaction

The reaction represented by the equation $Mg + 03 \rightarrow 2MgO$.

"Hydorgen" and Chlorine Reaction

The chemical reaction represented by the balanced equation $Hz + Cl \rightarrow 2HCI$.

Barium chloride and Aluminium sulphate Reaction

The chemical reaction represented by the balanced equation $3BaCl_2 + Al_2(SO_4)_3 \rightarrow 3BaSO_4 + 2AICI$.

Sodium and Water Reaction

The chemical reaction represented by the balanced equation $2Na + 2H_2O \rightarrow 2 NaOH + H_2$, producing "Hydorgen".

Barium chloride and Sodium sulphate reaction in water

The balanced equation with state symbols is $BaCl_2(aq) + Na_2SO_4(aq) \text{ ADEM } BaSO_4(s) + 2NaCl(aq)$, forming insoluble barium sulphate.

Sodium hydroxide and Hydrochloric acid reaction in water

The balanced equation with state symbols is $NaOH(aq) + HCl(aq) \rightarrow NaCl(aq) + H_2O(1)$.