Term
| steps to the scientific method |
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Definition
ask a question
gather info
form hypothesis
test hypothesis
analyze
draw conclusion |
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Term
| what is the difference between and independent and dependent variable? |
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Definition
independent-is what you change
dependent- you do not change |
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Term
| law of conservation of mass |
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Definition
| matter can not be created or destroyed through a chemical reaction |
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Term
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Definition
| measurement of the quantity of matter in an object |
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Term
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Definition
| amount of space occupied by an object |
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Term
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Definition
| the mass per unit volume of a material |
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Term
| where does the independent variable go on a graph? |
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Definition
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Term
| what to categories can matter be classified into? |
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Definition
| substance(element-carbon or a compound-salt) or a mixture(homogenous-brewed tea or heterogenous-chex mix, chocolate chip ice cream) |
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Term
| what does Archimedes principle say? |
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Definition
(discovered buoyancy)
Archimedes found that the buoyant force on an object is equal to the weight of the fluid displaced by the object |
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Term
| as volume of a gas increases, the pressure __________. This is referred to as _______ law. |
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Definition
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Term
| as temperature of a gas increases the pressure______. this is reffered to as_________Law. |
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Definition
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Term
| which scientist proposed that the mass of an atom is located in the nucleus based on evidence he collected from his gold foil experiment? |
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Definition
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Term
| Which scientist identified the electrons scarred around the nucleus? |
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Definition
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Term
| what info does the atomic number give you? |
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Definition
| the number of protons and electrons |
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Term
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Definition
| atoms of the same element have different number of protons |
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Term
| Which scientist organized the periodic table of elements? |
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Definition
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Term
| how many electrons are in the first energy level? how about the second |
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Definition
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Term
| what do elements of the same group on the periodic table of elements have in common? |
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Definition
| same number of valence electrons(also have the same properities |
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Term
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Definition
| a fluid's resistance to flow |
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Term
| what do elements in the same period on the periodic table have in common? |
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Definition
| same number of energy levels |
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Term
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Definition
| malleable, ductile, lustery |
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Term
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Definition
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Term
| where are the transition metals? |
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Definition
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Term
| what group is called the noble gases? |
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Definition
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Term
| what is unique about the noble gases? |
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Definition
| can not bond! have full outer shells! |
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Term
| what are atoms trying to achieve when bonding? |
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Definition
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Term
| when an atom gains or loses electrons what is formed? |
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Definition
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Term
| what is the difference between ionic and covalent bonding? |
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Definition
ionic-attraction formed between oppostiely charged ions in an ionic compound
covalent- attractions formed between two ins that share electrons |
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Term
| what is a polyatomic-ion? |
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Definition
| a positively charged or negatively charged covalent bonded group of atoms |
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Term
| what type of compound gets a prefix in the name? |
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Definition
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Term
| if you see s,l,g, or aq, what does it mean? |
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Definition
s-solid
l-liguid
g-gas
aq-aqueas(can be dissolved in water) |
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Term
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Definition
| maximum amount of a solute that can be dissolved in a given amount of solvent at a given temperature |
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Term
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Definition
| single replacement, double replacement, synthesis, combustion, and decompostion |
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Term
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Definition
oxidation-lose
reduction-gain |
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Term
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Definition
ex. polar to polar
water and salt |
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Term
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Definition
| below maximum level that a solvent can dissolve |
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Term
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Definition
| the maximum amont a solvent cant dissolve |
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Term
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Definition
| over the maximum amount of solute dissolved in a solvent |
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Term
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Definition
| speed up chemical reaction |
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Term
| what does an inhibitor do? |
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Definition
| slow down chemical reaction |
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Term
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Definition
1 alkali metals
2 alkaline earth metas
17 the halogens |
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Term
| a substance with a pH of 2? |
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Definition
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Term
| a substance with a pH of 10? |
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Definition
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Term
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Definition
| it reduces affects of an acid of base |
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Term
| what is the difference between a constant and a control? |
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Definition
| constant stays the same, control maintains experiment |
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