What are 2 examples of natural chemical changes and 2 examples of human caused chemical changes?
Thanks.
Human caused chemical changes would be I think greenhouse gases,and water pollution.
Two examples of natural chemical changes are:
1. Rusting of iron: When iron is exposed to oxygen and moisture over time, it undergoes a chemical reaction, forming iron oxide or rust.
2. Digestion of food: In our bodies, the food we consume undergoes various chemical changes as it is broken down by enzymes and acids in our digestive system.
Two examples of human-caused chemical changes are:
1. Combustion of fossil fuels: When fossil fuels like coal, oil, and natural gas are burned for energy, they undergo a chemical reaction with oxygen, releasing carbon dioxide, water vapor, and heat.
2. Polymerization in manufacturing plastics: In plastic manufacturing processes, monomers are combined to form polymers through a chemical reaction known as polymerization. This process leads to the creation of various types of plastics that we use in everyday life.
Sure! I can help you with that.
First, let's start with two examples of natural chemical changes:
1. Rusting of iron: When iron comes into contact with oxygen and moisture in the air, a chemical reaction occurs. This reaction is known as oxidation and results in the formation of iron oxide, also known as rust.
2. Digestion of food: When you eat food, it goes through a series of chemical reactions in your body. Enzymes and acids in your digestive system break down the complex molecules in food into simpler substances that your body can absorb and use for energy.
Now, let's move on to two examples of human-caused chemical changes:
1. Combustion of fossil fuels: When fossil fuels such as gasoline, coal, or natural gas are burned for energy, they undergo a chemical reaction with oxygen in the air. This reaction releases heat, light, and various combustion byproducts, such as carbon dioxide and water vapor.
2. Production of plastic: The production of plastic involves various chemical reactions. For example, the polymerization of monomers (smaller molecules) forms long chains of polymers, which give plastic its structure and properties. These reactions are typically carried out in factories using specific chemical processes.
To find more examples, you can explore scientific resources, chemistry textbooks, or conduct your own research.