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100
How many grams are in 1 kilogram
What is 1000g
100
smallest particle of an element that retains the chemical properties of that element
What is an atom
100
Discovered neutrons
Who is Chadwick
100
6.02X10^23
What is Avogrados number
100
chemical compounds contains the same elements in exactly the same proportions by mass regardless of the size of the sample or source of the compound
What is law of definite proportions
200
How many meters are in 1 milliliter?
What is .001m
200
Number of protons in the nucleus of each atom of an element
What is an atomic number
200
Conducted experiment that showed canal rays/ positive particles, mass p+ 1840x that of e-
Who is Goldstein
200
SI unit for substance
What is a mole
200
two or more different compounds are composed of teh same two elements, then the ratio of the masses of the second element combined with a certain mass of the first element is always a ratio of small whole numbers
What is Law of multiple proportions
300
total number of protons and neutrons in the nucleus of an isotope
What is the mass number
300
Discovered that Cathode rays were deflected by a magnetic field
Who is Thompson
300
Mass of 1 mole of the substance
What is the molar mass
300
positively charged particle neutral particle negatively charged particle
What is a proton, neutron, and an electron
400
How many moles of platinum are equivalent to 1.2X10^24 atoms?
2 mol
400
general term for any isotope of any element
What is a nuclide
400
Discoverd negative parts spread evenly though positive
Who is Thompson
400
Mass cannot be created or destroyed during chemical reactions or physical changes
What is the law of conservation of mass
400
Atom of the same element with a different mass
What is an isotope
500
Calculate the number of atoms in 10g of sulfur (molar mass 32.07g/mol
1.87X10^23
500
transformation of a substance or substances into one or more new substances
What is a chemical reaction
500
Recite Daltons Theory
All matter is composed of extremely small particles called atoms. Atoms of an element are identical in size, mass, and other properties; atoms of different elements differ in size, mass, and other properties. Atoms cannot be subdivided, created or destroyed. Atoms of different elements combine in simple whole-number ratios to for chemical compounds. In chemical reactions, atoms are combined, separated or rearranged.
500
How many neutrons are in Hydrogen
0
500
All matter is composed of atoms Atoms of one or more element differ in properties from atoms of another element
What is Atomic Theory