Which statement about compounds is FALSE? A. Compounds consist of atoms of two or more different elements that are chemically bonded together. B. The elements in a compound cannot be separated or recovered by a physical process. C. Ionic compounds are composed of cations and anions. D. Intermolecular forces are attractive forces between molecules of a compound, and are responsible for the compound’s physical properties. E. Covalent compounds are composed of metals and nonmetals.
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.
25) Which statement about compounds is FALSE?
A. |
Compounds consist of atoms of two or more different elements that are
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B. |
The elements in a compound cannot be separated or recovered by a physical process. |
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C. |
Ionic compounds are composed of cations and anions. |
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D. |
Intermolecular forces are attractive forces between molecules of a compound, and are responsible for the compound’s physical properties. |
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E. |
Covalent compounds are composed of metals and nonmetals. |
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