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Olfaction requires the chemical response of a dissolved substance for a stimulus?
Wiki User
∙ 10y ago
yes it does
Wiki User
∙ 10y ago
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A chemical substance that an orgamism requires to live is called?
a nutrient.
When liquid becomes a water vapor is that a chemical reaction?
no. chemical reaction requires a new substance to be created
What substance whose smallest unit is made up of more than one element?
Usual table salt requires two chemical elements to exists (Na+, Cl-).
What are the difference between a substance's physical properties and its chemical properties?
Chemical properties involve reacting with another substance. IE: burning of magnesium requires oxygen after which it is no longer magnesium. Physical properties do not. IE: metals are malleable, some very malleable, like copper wire can be bent with your hand. BUT it is still copper wire.
Why are dissolved oxygen levels important when studying aquatic ecosystems?
The metabolism of an organism, whether land based or aquatic, generates useful chemical energy through the oxidation of chemicals such as carbohydrates. This requires oxygen. Land based animals acquire oxygen from the air; fish acquire oxygen from the water. In order for them to be able to do this, they need to have oxygen dissolved in the water. In water that has no dissolved oxygen, fish suffocate.
A chemical substance that an orgamism requires to live is called?
a nutrient.
When liquid becomes a water vapor is that a chemical reaction?
no. chemical reaction requires a new substance to be created
What is a chemical substance that an organism requires to live?
Nutrient. If working on word wise, the answers are 1. chemosynthesis 2. ? 3. nutrient 4. producers 5. binome 6. biogeochemical cycle
Is colorless a physical change or a chemical change?
Colorless is a physical property. Determining change requires you to compare two things.
What is the cellular movement of a substance that requires the use of energy.?
what is the cellular movement of a substance that requires the use of energy. what is the word for it
What substance whose smallest unit is made up of more than one element?
Usual table salt requires two chemical elements to exists (Na+, Cl-).
What are the difference between a substance's physical properties and its chemical properties?
Chemical properties involve reacting with another substance. IE: burning of magnesium requires oxygen after which it is no longer magnesium. Physical properties do not. IE: metals are malleable, some very malleable, like copper wire can be bent with your hand. BUT it is still copper wire.
The freezing of a substance requires?
It requires the removal of heat.
Why are dissolved oxygen levels important when studying aquatic ecosystems?
The metabolism of an organism, whether land based or aquatic, generates useful chemical energy through the oxidation of chemicals such as carbohydrates. This requires oxygen. Land based animals acquire oxygen from the air; fish acquire oxygen from the water. In order for them to be able to do this, they need to have oxygen dissolved in the water. In water that has no dissolved oxygen, fish suffocate.
Is pure air a pure substance?
Air is a compound gas, but techically speaking it is definitely not a chemical substance. The main components of air are nitrogen (78% ) and oxygen (20.95%) and yes, those ARE chemical substances. Chemistry, as well as other sciences, requires you to be very specific with concepts and language.
Flammability is a chemical property that tells whether a substance reacts in the presence of?
Flammability is a chemical property that indicates how well a substance reacts with the element oxygen. Flammability requires oxygen in air for a substance to ignite, or lead to combustion. In regards to flammable liquid, a term often used is flash point, which is the minimum temperature required by flammable liquids to give off enough vapors into the air and begin to burn at their surfaces.
What requires a chemical reaction to form?
A product, by definition a product is produced by a chemical reaction.
