4. A cone-shaped paper cup has a radius of 4.2 cm and a height of 9 cm. How many cm³ of water can it contain?​

Sagot :

Answer:

Rusting of iron4Fe + 3O2 + 2H2O → 2Fe2O3 . H2ORustingofiron4Fe+3O2+2H2O→2Fe2O3.H2O Rusting of iron 4Fe + 3O2 + 2H2O → 2Fe2O3 . H2O