Texes life science 238 - Study guides, Class notes & Summaries

TEXES LIFE SCIENCE 238 UPDATED Exam Questions and CORRECT Answers Covalent Bonding - Correct Answer- the sharing of a pair of valence electrons by two atoms. Example: two hydrogen atoms bonded as a hydrogen molecule. Ionic Bond - Correct Answer- A chemical bond resulting from the attraction between oppositely charged ions. Hydrogen Bond - Correct Answer- Weakest bond of the 3. Formed when the slightly positive hydrogen atom of a polar covalent bond in one molecule is attracted to th...

mass - ANSWER-measurement of the amount of matter something contains weight - ANSWER-measurement of the pull of gravity an object contains chromatography - ANSWER-set of techniques used to separate substances based on their different properties such as size or charge centrifugation - ANSWER-used to separate blood into blood cells, with heavier blood cells settling to the bottom electrophoresis - ANSWER-uses electrical charges of molecules to separate them according to their size p...