A student believes she is observing a chemical reaction when pure sugar is burned and caramelizes. How can the student tell that
1 answer:
Answer:
The solubility of a solute in a particular solvent is the maximum concentration that may be achieved under given conditions when the dissolution process is at equilibrium. Referring to the example of salt in water:
Explanation:
We will know that caramelizing sugar is a chemical change because it changes the sugar's color. A chemical change involves the forming of new substances from specific substances called reactants. Caramelizing sugar releases volatile chemicals that cause its caramel flavor.V = 4/3 πr^3
The melting points of crystalline solids cannot be categorized in as simple a fashion as boiling points. The distance between molecules in a crystal lattice is small and regular, with intermolecular forces serving to constrain the motion of the molecules more severely than in the liquid state.
(radius of sphere B)^3 / (radius of sphere A)^3
= 4^3 / 2^3
= 64/8
= 8
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Answer:
8 Silicon atom are present in unit cell.
16 oxygen atoms are present unit cell.
Explanation:
Number of atoms in unit cell = Z =?
Density of silica = tex]2.32 g/cm^3[/tex]
Edge length of cubic unit cell = a = 0.700 nm =
Molar mass of Silica =
Formula used :
where,
= density
Z = number of atom in unit cell
M = atomic mass
= Avogadro's number
a = edge length of unit cell
On substituting all the given values , we will get the value of 'a'.
1 silicon is 2 oxygen atoms. then 8 silicon atoms will be 16 oxygen atoms.