LATEST chemistry exam defnitions Questions And Answers

chemistry exam definitions q q


Studyqonlineqatqhttps://quizlet.com/_gaedl4




LATEST chemistry exam defnitions Questions And Answers


1. matter: anything that has mass and volume
q q q q q q


2. chemical: a substance that is always the same
q q q q q q q


3. steps of the scientific method: 1. observation
q q q q q q


2. form a hypothesis
q q


3. experiment
4. conclusion
4. density: mass/volume q


5. element: # of protons in an atom q q q q q q


6. compound/molecule: atoms bonded together q q q


7. solid: non-compressible and definite volume/shape
q q q q


8. gas: no definitive volume/shape
q q q


9. liquid: non-compressible and no definite shape
q q q q q


10. physical properties: observed without changing and chemical composition
q q q q q q q


11. physical change: filtration and distillation
q q q q


12. chemical properties: reactivity and chemical change
q q q q q


13. chemical change: 1. color change q q q q


2. gas forms q


3. heat/energy
14. temperature conversion (kelvin): C + 273.15 = Kelvin q q q q q q q


15. Group/family (vertical) and period (horizontal): q q q q




16. metals: a solid material that is typically hard, shiny, malleable, fusible, and d
q q q q q q q q q q q q


uctile, with good electrical and thermal conductivity
q q q q q q


17. nonmetals: solid/liquid/gas and brittle q q q


18. metalloids: elements with properties of both metal and nonmetal
q q q q q q q q


19. daltons atomic theory: 1. al matter is composed of atoms
q q q q q q q q q


2. atoms of same element are scientifical
q q q q q


3. atoms cannot be subdivided, created, nor destroyed
q q q q q q


4. restate law of multiple proportions
q q q q


5. in chemical reactions, atoms are rearranged
q q q q q

1q/q4