Term
| Name first 20 elements (GIVE SYMBOLS) |
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Definition
1. H (hydrogen)
2. He (helium)
3. Li (Lithium)
4. Be (Beryllium)
5. B (Boron)
6. C (Carbon)
7. N (Nitrogen)
8. O (Oxygen)
9. F (Fluorine)
10. Ne (Neon)
11. Na (Sodium)
12. Mg (Magnesium)
13. Al (Aluminum)
14. Si (Silicon)
15. P (Phosphorus)
16. S (Sulfur)
17. Cl (Chlorine)
18. Ar (Argon)
19. K (Potassium)
20. Ca (Calcium) |
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Definition
| Anything that has mass and takes up space |
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Definition
| AN OBSERVATION BASED ON THE PURITY OF A SUBSTANCE |
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Definition
| AN OBSERVATION BASED ON THE AMOUNT OF A SUBSTANCE |
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Definition
| The measurement of matter |
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Definition
| The mass per unit volume of an object |
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Definition
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Definition
| A substance which cannot be broken down into simpler substances |
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Definition
| A chemical combination of 2 or more elements |
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Definition
| A combination of 2 or more substances NOT chemically combined |
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Term
| HETEROGENEOUS MIXTURE (exs) |
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Definition
| A mixture in which the 2 or more substances are not dissolved in one and other (sand, pebbles, and concrete) |
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Term
| HOMOGENEOUS MIXTURE (exs) |
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Definition
A mixture in which the 2 or more substances are dissolved in each other
(solution) |
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Term
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Definition
| The component o a solution which is dissolved (the ice in iced tea) |
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Definition
| the component of a solution which dissolves the other (the tea in the iced tea) |
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Definition
| A solution in which water is solvent |
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Definition
| A solution of 2 or more metals (copper and zinc melted together to form brass) |
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Term
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Definition
| A property which does not involve or determine the chemical reactivity of a substance (color, mass, hardness) |
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Definition
| A property which determines the chemical reactivity of a substance (electron structure) |
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Definition
| a change which does not involve a change in the chemical make-up of the substance (freezing, boiling, solidifying) |
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Definition
| A change which does involve a change o the chemical make-up of a substance (burning, exploding) |
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| EVIDENCE OF A CHEMICAL CHANGE |
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Definition
| The evolution of light, heat, color change, a gas, or a precipitate |
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Term
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Definition
| the formation of a solid in a solution or inside another solid during a chemical reaction or by diffusion in a solid |
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Term
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Definition
| Symbols and numbers which indicate the kind and amount of each element in a compound (H20 & CO2) |
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Term
| Name first 20 elements/symbols |
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Definition
(H) Hydrogen
(He) Helium
(Li) Lithium
(Be) Beryllium
(B) Boron
(C) Carbon
(N) Nitrogen
(O) Oxygen
(F) Fluorine
(Ne) Neon
(Na) Sodium
(Mg) Magnesium
(Al) Aluminium
(Si) Silicon
(P) Phosphorous
(S) Sulphur
(Cl) Chlorine
(Ar) Argon
(K) Potassium
(Ca) Calcium |
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Term
NAME THAT PREFIX:
millionth |
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Definition
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Term
NAME THAT PEFIX:
10 to the -15th power |
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Definition
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NAME THAT PEFIX:
trillionth |
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Definition
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NAME THAT PEFIX:
hundred thousandth |
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Definition
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NAME THAT PEFIX:
thousandth |
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Definition
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NAME THAT PEFIX:
hundredth |
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Term
| How many significant figures are there in 5.9331? |
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Definition
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| How many significant figures are there in 0.000005? |
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Definition
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| How many significant figures are there in 2.02240? |
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Definition
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| how many significant figures are there in 0.045010? |
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Definition
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| how many significant figures are there in 1,000,000? |
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Definition
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| how many significant figures are there in 100 cm/m? |
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