About Gravity, tick only the incorrect alternative(s), choose one or more: a) In gravimetric analysis, the mass of a given product is used to calculate the amount of analyte present in the original sample. b) Crystallization is a process that takes place in two phases: nucleation and particle growth. In nucleation, it involves adding more than one molecule to the crystallization nucleus to form a crystal. And in particle growth, the molecules in the solution randomly clump together, forming small aggregates. c) Impurities are known as co-precipitate, that is, the impurity is precipitated together with the desired product. d) Absorbed impurities are bonded to the surface of a crystal. Adsorbed impurities (which are inside the crystal) are classified as inclusions or occlusions. e) We can relate the mass of a gravimetric precipitate to the amount of original analyte. The general method is to relate the number of moles of products to the number of moles of reactant.
States of Matter
The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).
Chemical Reactions and Equations
When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.
About Gravity, tick only the incorrect alternative(s), choose one or more:
a) In gravimetric analysis, the mass of a given product is used to calculate the amount of analyte present in the original sample.
b) Crystallization is a process that takes place in two phases: nucleation and particle growth. In nucleation, it involves adding more than one molecule to the crystallization nucleus to form a crystal. And in particle growth, the molecules in the solution randomly clump together, forming small aggregates.
c) Impurities are known as co-precipitate, that is, the impurity is precipitated together with the desired product.
d) Absorbed impurities are bonded to the surface of a crystal. Adsorbed impurities (which are inside the crystal) are classified as inclusions or occlusions.
e) We can relate the mass of a gravimetric precipitate to the amount of original analyte. The general method is to relate the number of moles of products to the number of moles of reactant.
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