Chemistry Global Warming and Reactions Quiz

Oxyacetylene flame, produced by burning acetylene gas with oxygen, generates extremely high temperatures, making it ideal for welding metal.

When air containing carbon dioxide ($CO_2$) is bubbled through limewater (calcium hydroxide solution), it forms a milky white precipitate of calcium carbonate (chalk).

Global warming primarily occurs due to the trapping of infrared (IR) radiation by greenhouse gases like carbon dioxide ($CO_2$) and water vapor ($H_2O$). These gases absorb and re-emit IR radiation, preventing it from escaping into space, leading to a warming effect.

Pyrites, also known as fool's gold, are a type of sulfide mineral, composed of iron sulfide ($FeS_2$). Unlike most other common minerals, they do not contain oxygen.

The chemical reaction of calcium (Ca) with oxygen ($O_2$) forms calcium oxide (CaO). When calcium oxide (CaO) reacts with water ($H_2O$), it produces calcium hydroxide ($Ca(OH)_2$ ), which is a base and turns red litmus blue.

The troposphere is the lowest layer of the atmosphere, characterized by turbulent air due to convection currents. These currents are driven by the uneven heating of the Earth's surface, leading to variations in air pressure and temperature, causing turbulent mixing.

The troposphere is the layer of atmosphere closest to the Earth's surface. It's where we live and where weather occurs.

Some metal oxides, like mercury oxide (HgO), break down into their constituent elements when heated, releasing oxygen gas.

Chlorofluorocarbons (CFCs) are synthetic compounds previously used in refrigerants and air conditioning systems. However, due to their harmful effects on the ozone layer, their use has been banned.

The Moon has a very thin atmosphere with extremely low atmospheric pressure. If a balloon filled with air is taken to the Moon, the balloon would expand due to the much lower pressure difference between the inside and outside of the balloon.