CHEMISTRY

3. A substance that can be dissolved in a solvent (usually water) to form a homogeneous solution.
5. A type of chemical bond where two atoms share one or more pairs of electrons.
9. A substance that does not dissolve appreciably in a solvent, meaning it remains largely undissolved.
11. A measure of the amount of matter in an object or substance, typically measured in grams or kilograms.
12. A process in which substances (reactants) are transformed into different substances (products) through the breaking and forming of chemical bonds.
13. A state of matter characterized by a definite shape and volume, with particles that are closely packed in a fixed arrangement.
14. A positively charged ion that is formed when an atom or molecule loses one or more electrons.
15. A type of chemical bond formed between two oppositely charged ions, typically a metal cation and a non-metal anion, where electrons are transferred from one atom to another.

1. A substance that is formed as the result of a chemical reaction.
2. Electrons that are not associated with a single atom or a covalent bond and are free to move throughout a structure, such as in metallic bonding.
4. A solution in which the solvent is water. For example, when a substance is dissolved in water, it is said to be in an aqueous solution.
6. A negatively charged ion that is formed when an atom or molecule gains one or more electrons.
7. The combining capacity of an atom or ion, determined by the number of electrons it can lose, gain, or share when forming chemical bonds.
8. A regular, repeating arrangement of atoms, ions, or molecules in a crystalline solid structure.
10. The maximum amount of a substance that can dissolve in a given quantity of solvent at a specific temperature, resulting in a saturated solution.