Question

1. Metal react with oxygen to produce ________
oxides and non-metal react with oxygen to produce ________ oxides.
2 The presence of ______ and ______ are necessary for iron to rust.
3. _________ is used for making X-ray shields.
4. _________ non-metals is used in fluorescent bulbs to display advertisements.
5. _______ element is used for making pencil lead.
6. _________ and ______
are lustrous non-metals.
7. ___________ is the only non-metals that exist as liquid at room temperature.​

Answer 1

Answer:

1. Metal react with oxygen to produce metal

oxides and non-metal react with oxygen to produce non-metal oxides.

2. The presence of moisture and air are necessary for iron to rust.

3. Lead is used for making X-ray shields.

4. Neon non-metals is used in fluorescent bulbs to display advertisements.

5. Graphite element is used for making pencil lead.

6. Diamond and Iodine are lustrous non-metals.

7. Bromine is the only non-metals that exist as liquid at room temperature.

Answer 2

1. Metal react with oxygen to produce basic (metallic)

oxides and non-metal react with oxygen to produce acidic and neutral (non metallic) oxides

2 The presence of moisture (or water) and oxygen are necessary for iron to rust.

3. Lead is used for making X-ray shields.

4. Neon non-metal is used in fluorescent bulbs to display advertisements.

5. Carbon (graphite) element is used for making pencil lead.

6. Iodine and (not sure) Graphite -Carbon are lustrous non-metals.

7. Bromine is the only non-metal that exist as liquid at room temperature.