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The dust particles have exactly the same chemical composition as the gases of the interstellar medium?
Wiki User
∙ 12y ago
false.
Wiki User
∙ 12y ago
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The statement that a chemical compound always contains the same elements in exactly the same proportions is called the law of?
"In chemistry, the law of definite proportions and also the elements, sometimes called Proust's Law, states that a chemical compoundChemical_compoundalways contains exactly the same proportion of elementsChemical_elementby mass. An equivalent statement is the law of constant composition, which states that all samples of a given chemical compound have the same elemental composition." - Wikipedia
What is a method for showing what a molecule or compound contains?
Chemical analysis shows the contents of compounds and molecules. To identify the compound, you use qualitative analysis. To know exactly how much is present, quantitative analysis should be performed.
A chemical property is a change in what?
There are many different possible property changes in a chemical change. You must post the specific reaction for anyone to tell you exactly.
When each side of a composition is exactly the same it shows?
Absolute Symmetry
Is there a way to decide whether a chemical is a gas or liquid just by looking at its physical properties?
If the property can be observed without changing the chemical composition of the substance, then it is a physical property. If the property can be observed only through a chemical reaction, then it is a chemical property.
Why is hot soup cooling down a physical change?
The chemical composition remain unchanged.
What is the chemical composition of rye?
Well... It's a plant. I mean, you can break that down and figure out exactly what that is, but it's a living thing, not a chemical compound.
When ice melts you can tell it is a chemical change because?
The melting of ice is a physical not, not a chemical change. You can tell this because the chemical composition of ice and water are exactly the same, i.e. they are both H2O. Only the physical property has changed since one is a solid and one is a liquid.
The statement that a chemical compound always contains the same elements in exactly the same proportions is called the law of?
"In chemistry, the law of definite proportions and also the elements, sometimes called Proust's Law, states that a chemical compoundChemical_compoundalways contains exactly the same proportion of elementsChemical_elementby mass. An equivalent statement is the law of constant composition, which states that all samples of a given chemical compound have the same elemental composition." - Wikipedia
What is a method for showing what a molecule or compound contains?
Chemical analysis shows the contents of compounds and molecules. To identify the compound, you use qualitative analysis. To know exactly how much is present, quantitative analysis should be performed.
How does a Salmon know exactly where they were born?
They 'imprint' the chemical composition of the stretch of water where they hatch. Once they reach adulthood (after swimming in the oceans) they use this imprinted knowledge to 'home in' on the river where they hatched.
A chemical property is a change in what?
There are many different possible property changes in a chemical change. You must post the specific reaction for anyone to tell you exactly.
What exactly are water particles?
particles made up of 2 hydrogen n 1 oxygen
What is the definition of composition of soil?
It means what exactly are the component parts of that soil.
When each side of a composition is exactly the same it shows?
Absolute Symmetry
State the law of definite proportions?
The law of definite proportions states that all chemical compounds have constant proportions of their components.
What is the chemical name for actinium?
The official chemical name is exactly actinium.
