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Ch. 15 & 16~HKH
Question | Answer |
---|---|
the combining of atoms to form molecules or compounds | Chemical Bonds |
a compound made up of positively charged ions | Ionic Compounds |
a chemical compound formed by sharing of electrons | Covalent Compound |
any compound that increases the number of hydronium ions when dissolved in water | Acid |
a compound that can reversibly change color depending on conditions such as pH | Indicator |
any compound that increases the number of hydroxide ions when dissolved in water | Base |
the reaction of an acid and a base to form a neautral solution of water and salt | Neutralization Reaction |
a value that is used to express the acidty or basicity of a system | pH |
an ionic compound that forms when a metal atom replaces the hydrogen of an atom | Salt |
a covalently bonded compound that contains carbon | Organic Compound |
an organic compound composed only of carbon and hydrogen | Hydrocarbon |
a class of energy-giving nutrients that includes sugars, starches, fiber;composed of one or more simple sugars bonded together | Carbohydrate |
a type of biochemical that does not dissolve in water;fats and steroids are lipids | Lipid |
a molecule that is made up of amino acids and that is needed to build land repair body structures and to regulate processes in the body | Protein |
a molecule made up of subunits called nucleotides | Nucleic Acid |
the process by which an unstable nucleus gives off nuclear radiation | Radioactivity |
the sum of the numbers of protons and neutrons in the nucleus of an atom | Mass Number |
an atom that has the same number or protons as other atoms of the same element do but that has a different number of neutrons | Isotope |
the time needed for half of a sample of a radioactive substance to undergo radioactive decay | Half-Life |