Science Matter & Materials Conceptual 12–13 yrs

Acid Reactions & Salts

酸的反应与盐

Description

Describe and write word equations for the reactions of acids with metals, alkalis (neutralisation), and metal oxides/hydroxides, identifying the salt produced in each case

Mastery Evidence

✓ Writes word equations for: acid + metal → salt + hydrogen; acid + alkali → salt + water; acid + metal oxide → salt + water
✓ Names the salt formed from a given acid and base (e.g. hydrochloric acid + sodium hydroxide → sodium chloride)
✓ Describes the test for hydrogen gas (squeaky pop)
✓ Explains what neutralisation means and gives a practical example (indigestion tablets, treating acidic soil)

Assessment Prompt

If your child was asked how an indigestion tablet works to relieve stomach acid, could they explain what type of chemical reaction is happening and write a simple word equation for it?