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A chemical substance that an orgamism requires to live is called?
A vital chemical substance that an organism requires to live is called a nutrient. Nutrients can include elements like carbon, hydrogen, oxygen, nitrogen, and essential minerals that are necessary for the organism's growth, development, and metabolism.
When liquid becomes a water vapor is that a chemical reaction?
no. chemical reaction requires a new substance to be created
What substance can only be broken down by chemical change?
A substance that can only be broken down by chemical change is a compound. Compounds are made up of different elements chemically bonded together, and breaking these bonds requires a chemical reaction. Physical changes, such as melting or dissolving, cannot break compounds down into their individual elements.
Can a substance produced during a chemical change be easily changed back into the original substance?
In general, a substance produced during a chemical change cannot be easily changed back into the original substance. Chemical changes are characterized by the formation of new substances with different chemical properties than the original substances. Reversing a chemical change typically requires a different set of reactions or processes.
What substance whose smallest unit is made up of more than one element?
Usual table salt requires two chemical elements to exists (Na+, Cl-).
A chemical substance that an orgamism requires to live is called?
A vital chemical substance that an organism requires to live is called a nutrient. Nutrients can include elements like carbon, hydrogen, oxygen, nitrogen, and essential minerals that are necessary for the organism's growth, development, and metabolism.
What weathering process usually requires water apex?
Chemical weathering typically requires water, as it involves the breakdown of rocks through chemical reactions with water and substances dissolved in it. Water can dissolve minerals in rocks, leading to their decomposition and alteration. Water also facilitates the transport of ions and molecules involved in chemical weathering processes.
What is a chemical substance that an organism requires to live?
One example of a chemical substance that an organism requires to live is water. Water is essential for various biological processes such as nutrient transport, temperature regulation, and waste removal.
Is colorless a physical change or a chemical change?
Colorless is a physical property. Determining change requires you to compare two things.
When liquid becomes a water vapor is that a chemical reaction?
no. chemical reaction requires a new substance to be created
Movement of a substance across a cell membrane using chemical energy occurs during?
Active transport is the movement of a substance across a cell membrane using chemical energy. This process requires the use of a carrier protein and ATP to transport molecules against their concentration gradient.
What substance can only be broken down by chemical change?
A substance that can only be broken down by chemical change is a compound. Compounds are made up of different elements chemically bonded together, and breaking these bonds requires a chemical reaction. Physical changes, such as melting or dissolving, cannot break compounds down into their individual elements.
Can a substance produced during a chemical change be easily changed back into the original substance?
In general, a substance produced during a chemical change cannot be easily changed back into the original substance. Chemical changes are characterized by the formation of new substances with different chemical properties than the original substances. Reversing a chemical change typically requires a different set of reactions or processes.
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.
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.
