please tell chemical properties equations
Answers
Answer:
Chemical properties can only be established by changing a substance's chemical identity, and are different from physical properties, which can be observed by viewing or touching a sample. The internal qualities of a substance must be altered to determine its chemical properties. For example:
- Flammability - How easily something will burn or ignite, is a chemical property because you can't tell just by looking at something how easily it will burn. Fire testing is done to determine how difficult or easy it will be to get a certain material to burn.
- Heat of Combustion - This chemical property is the amount of energy that is released as heat when a substance is burned with oxygen.
- Examples of this chemical property is a calorie which converts to energy within the body and the amount of heat generated by the burning of various fuels.
- Toxicity - How much a substance can damage an animal, plant, cell, organ, or other organism is its toxicity. Materials with the chemical property of toxicity include lead, chlorine gas, hydrofluoric acid, and mercury. Toxicity is measured by how the lead, chlorine gas, mercury, or other substance affects the organism - basically, by how much damage it does to the organism and how quickly that damage occurs.
- For example, lead is a toxic substance that can damage various parts of the human body, including bones, the heart, kidneys, intestines, and the nervous and reproductive systems.
- Ability to oxidize - This is what takes place by gaining oxygen, losing hydrogen, or losing electrons, and is a chemical property that results in the oxidation number of a substance being changed. An example of this is rust. Over time, iron and steel (which is made of iron) will rust. However, they will rust more quickly if they are combined with pure oxygen.
Examples of oxidation include the way an apple turns brown after it has been cut, the way a penny turns green, and the way a fender on a car can become rusty.
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Answer:
Chemical properties can only be established by changing a substance's chemical identity, and are different from physical properties, which can be observed by viewing or touching a sample. The internal qualities of a substance must be altered to determine its chemical properties
Explanation:
1 Flammability - How easily something will burn or ignite, is a chemical property because you can't tell just by looking at something how easily it will burn. Fire testing is done to determine how difficult or easy it will be to get a certain material to burn.
2 Heat of Combustion - This chemical property is the amount of energy that is released as heat when a substance is burned with oxygen.
Examples of this chemical property is a calorie which converts to energy within the body and the amount of heat generated by the burning of various fuels.
3 Toxicity - How much a substance can damage an animal, plant, cell, organ, or other organism is its toxicity. Materials with the chemical property of toxicity include lead, chlorine gas, hydrofluoric acid, and mercury. Toxicity is measured by how the lead, chlorine gas, mercury, or other substance affects the organism - basically, by how much damage it does to the organism and how quickly that damage occurs.
For example, lead is a toxic substance that can damage various parts of the human body, including bones, the heart, kidneys, intestines, and the nervous and reproductive systems.
4 Ability to oxidize - This is what takes place by gaining oxygen, losing hydrogen, or losing electrons, and is a chemical property that results in the oxidation number of a substance being changed.
An example of this is rust. Over time, iron and steel (which is made of iron) will rust. they are combined with pure oxygen.
Examples of oxidation include the way an apple turns brown after it has been cut, the way a penny turns green, and the way a fender on a car can become rusty.
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