Complete the following word equations:
1. Carbon dioxide + Calcium hydroxide →______ + ______
2. Hydrochloric acid + Sodium hydroxide →______ + _____
3. Vinegar + Baking soda →________ + _______ + _____
4. Iron + oxygen + water →_____________
5. Copper sulphate + Iron →______ + _________.
6. Magnesium + Hydrochloric acid →_____ + ________.
Answers
Answer:
1) Carbon dioxide reacts with calcium hydroxide to form calcium carbonate and water. Ca(OH)2 + CO2 → CaCO3 + H2O This reaction is known as .
2) NaOH(aq)+HCl(aq)→NaCl(aq)+H2O(l)
3) The reaction is: Sodium bicarbonate and acetic acid reacts to carbon dioxide, water and sodium acetate. The solid baking soda was placed in liquid vinegar producing carbon dioxide gas, which is evident because of the formation of bubbles in the foaming mixture
4) rust
5)Reaction of Iron Nails with Copper Sulphate Solution in Water. When an iron nail is dipped in copper sulphate solution, a brown coating of copper is formed on the surface of iron and the colour of copper sulphate solution changes from blue to light green
6) Adding magnesium metal to hydrochloric acid produces hydrogen gas. The magnesium dissolves to form magnesium chloride, MgCl2.