3) Fossil Fuel Flashcards
Explain the role of carbon in fossil fuels and its impact on the environment
Carbon dioxide is released when fossil fuels are burnt, these carbon dioxide then float into our atmosphere trapping heat. Gases like these are known as greenhouse gases and they are the cause of global warming.
How does the combustion of fossil fuels release energy, and what are the byproducts of this process?
carbon monoxide, nitrogen dioxide, particles, and sulfur dioxide. Particles can have hazardous chemicals attached to them. These are also known to be greenhouse gases
Explain what other alternatives to fossil fuels are being developed to reduce their environmental impact?
- Wind power perfect for areas that have consistent wind and they provide electricity through converting rotational energy (Form of kinetic energy) into electrical energy via spinning a generator within the turbine.
- Solar power perfect for areas that recieve consistent sunlight, it provides electricity through receiving sunlight in the PV cells on solar panels.
- Hydro power perfect for coastal areas, similar to a wind turbine, it uses a turbine to convert the kinetic energy of water into mechanical energy then it transforms into electrical energy.
Explain the importance of energy conservation and efficiency in reducing the reliance on fossil fuels.
Energy conservation is important because if we use energy excessively it will lead to worser climate change and speed up global warming. Especially because we currently still rely a lot on fossil fuels, fossil fuel is a limited resource that will run out eventually. By transfering our depedence on these non-renewable resources to renewable resources we can have a greener stable future. For example, instead of using a car all the time you can choose to use public transport, walking, or biking. These smart alternatives won’t cost the planet and will lead us to learn how to use energy efficently.
Ion definition
An ion is an atom or group of atoms that has an electric charge.
Ion formation
An ion is an atom with a charge (positive or negative). To form an ion, an element must gain or lose an electron. Gaining electrons or losing electrons creates an ion. If an atom gains an electron, it has more electrons than protons, creating an overall negatively charged atom of an element. If an atom loses an electron, it becomes positively charged because it has more electrons than protons.
Define Chemical Bonding
Explains how atoms are held together in molecules
What is the purpose of separation techniques in chemistry, and why are they important in various applications?
It can isolate harmful or useful mixture componenets, it is generally used for purifying.
List and describe three common physical separation techniques used in the laboratory.
- Filtration: Separates solids
- Chromatopgraphy: Separating molecules in mixture applied onto the surface or into the solid, and fluid stationary phase (stable phase) is separating from each other through mobility. (Slips off basically)
- Distilation: Separates liquid from solid or liquid from liquid. It boils the substance so that the steam water vapour can condense into liquid.
Red litmus paper turns blue
Base
Blue litmus paper turns red
Acid
What is used to find pH of substances and to check?
universal indicator and universal indicator colour chart
What is combustion?
A reaction in which a substance reacts with oxygen gas to release light and heat energy
What is the combustion fire triangle?
Fuel, Heat, Oxygen
Explain the difference between complete and incomplete combustion, and provide examples of each.
Complete combustion is when the burning process recieves unlimited oxygen where as incomplete combustion recieves limited oxygen. You can see the difference because complete combustion have blue flames and incomplete combustion have red, orange, and yellow flames.