[cs_content][cs_section parallax=”false” separator_top_type=”none” separator_top_height=”50px” separator_top_angle_point=”50″ separator_bottom_type=”none” separator_bottom_height=”50px” separator_bottom_angle_point=”50″ style=”margin: 0px;padding: 45px 0px;”][cs_row inner_container=”true” marginless_columns=”false” style=”margin: 0px auto;padding: 0px;”][cs_column fade=”false” fade_animation=”in” fade_animation_offset=”45px” fade_duration=”750″ type=”1/1″ style=”padding: 0px;”][cs_text]The Acidic Environment > 2. Acidic Oxides >
Identify oxides of non-metals which act as acids and describe the conditions under which they act as acids[/cs_text][/cs_column][/cs_row][/cs_section][cs_section parallax=”false” separator_top_type=”none” separator_top_height=”50px” separator_top_angle_point=”50″ separator_bottom_type=”none” separator_bottom_height=”50px” separator_bottom_angle_point=”50″ style=”margin: 0px;padding: 45px 0px;”][cs_row inner_container=”true” marginless_columns=”false” style=”margin: 0px auto;padding: 0px;”][cs_column fade=”false” fade_animation=”in” fade_animation_offset=”45px” fade_duration=”750″ type=”1/1″ style=”padding: 0px;”][cs_text]
- Oxides can be classified as acidic, basic, amphoteric or neutral.
- Acidic oxides: Oxides that display one or both of the following properties:
- React with bases to form salts.
- React with water to produce acids.
- Basic oxides: Oxides that display the following properties:
- React with acids to produce salts.
- If soluble, react with water to produce alkaline solutions.
- Do not react with alkaline solutions.
- Amphoteric oxides: Oxides that react with both acids and bases.
- Neutral oxides: Oxides that do not react with either acids or bases.
- Acidic oxides: Oxides that display one or both of the following properties:
- Acidic oxides are generally formed by non-metals
- Basic oxides are generally formed by metals.
- Examples of acidic oxides are:
- Carbon dioxide (CO2).
- Diphosphorus pentoxide (P2O5).
- Nitrogen dioxide (NO2).
- Acidic oxides act as acids when they dissolve in wate.
- For example, carbon dioxide reacts with water to produce carbonic acid:
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- This is the reason why indicator paper must be moist in order to detect whether a non-metal oxide gas is acidic.
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