Question

hi! cud anyone help me with these two probs:

1 ) what happens when a magnesium ribbon is heated in presence of air?
2 ) explain the reaction of sodium and water with the help of an equation.

Answer 1

Answer:

1)When a magnesium ribbon is heated in presence of air it burn with a sparkling white light and forms a white powder called magnesium oxide.

2)Sodium reacts very violently with water forming a colourless salt Sodium hydroxide which is basic in nature and hydrogen gas

Equation- Na+H2O---NaOH+H2

Answer 2

Answer:

Hi HERE'S YOUR ANSWER

Explanation:

1 answer ) When the magnesium metal burns it reacts with oxygen found in the air to form Magnesium Oxide , When it burns, it forms a white powder of the magnesium oxide. Magnesium gives up two electrons to oxygen atoms to form this powdery product.

2 answer ) Sodium metal reacts rapidly with water to form a colourless solution of sodium hydroxide (NaOH) and hydrogen gas (H2).

The balanced equation is: 2Na+2H2O gives 2NaOH+H2.

HOPE IT HELPS YOU