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What kind of process alters molecular composition?
A chemical reaction alters molecular composition.
Give you an example of short composition?
A business letter.
Explain what thematic transformation is in a composition and give an example of its use in composition?
this never has the answers i need!
Give you one example of composition of Schumann?
Piano Concerto in A minor
Can you determine the molecular formula of a substance from its percent composition?
Not completely. The empirical formula of a substance can be determined from its percent composition, but a determination of molecular weight is needed to decide which multiple of the empirical formula represents the molecular formula.
What is a caesura and give an example and a long explanation how the example is related to the definition?
A caesura is a pause in a line of poetry or musical composition.
Which pair of molecules share the same chemical composition but differ in molecular structure?
Isomers are pairs of molecules that share the same chemical formula but have different structural arrangements. For example, glucose and fructose both have the chemical formula C6H12O6, but they have different structural arrangements.
Explain why the percent composition of certain compounds are not sufficient to determine the compounds molecular formulas?
Because unlike the empirical formula, the molecular formula does not have to be the simplest ratio.If by chance you are given the percent composition of the elements in a substance, you could calculate the empirical formula and then the empirical formula's mass. However, the molecular formula equation is molecular formula= (empirical formula)n, where n is the mass of the molecular formula divided by the mass of the empirical formula. You would, therefore, need to know the mass belonging to the molecular formula, which you are not given.
Can atomic and molecular ions be cations or anions?
Yes. Example of atomic cation is Na+. Example of atomic anion is Cl-. Example of molecular cation is NH4+. Example of molecular anion is NO3-.
What is the molecular composition of water?
H20 is the molecular composition of water. Two hydrogen atoms and one oxygen atom. The hydrogen atoms are pulled to the oxygen atom through forces called hydrogen bonding.
When determining percentage composition why is it acceptable to work with either molar quantities expressed in grams or average molecular quantities expressed in atomic mass units?
It is acceptable to work with either molar quantities expressed in grams or average molecular quantities expressed in atomic mass units because both methods give the same relative proportions of elements in a compound. The molar quantities expressed in grams allow for direct measurement and calculations based on mass, while the average molecular quantities expressed in atomic mass units provide a more theoretical approach in determining percentage composition.
What is it called when a mixture that appears to the same composition color and density and is mixed at the molecular level?
Solution: A mixture that appears to have the same composition, color, density, and taste, and is mixed at the atomic or molecular level.
