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41 Cards in this Set
- Front
- Back
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It refers to the area of chemistry that examines the quantities of substances consumed and produced in chemical reactions |
Stoichiometry |
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He stated that electrons moved around the nucleus in orbits |
Neil Bohr |
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The branch of chemistry that involves the qualitative and quantitative analyses of matter |
Analytical Chemistry |
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A state of matter where its molecules are separated with significant distances and has no fixed shape, taking the shape of its container |
Gas |
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The reactant that does not get completely consumed |
Excess Reagent |
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A small region at an atom's center that contains its mass which includes the neutrons and protons |
Nucleus |
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The study of life at the molecular level and the processes associated with life |
Biochemistry |
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He discovered that positively charged subatomic particles are confined at the nucleus |
Ernest Rutherford |
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The study of the properties of matter and the changes it undergoes |
Chemistry |
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His theory of atoms being "indivisible" was debunked |
John Dalton |
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It is equal to the number of protons, and most of the time electrons as well |
Atomic number |
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It determines the quantity of products during chemical reactions |
Limiting reagent |
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The study of theoretical aspects of the structure and change of matter |
Physical Chemistry |
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A homogenous mixture of two or more substances in which the dissolved particles are in molecular or ionic size |
Solutions |
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Chemistry falls within the scope of physical sciences |
True |
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Physics belongs to the area of natural science |
True |
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Zoology and Sociology are biological sciences |
False |
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It is hot in the afternoon at Denise's dorm, so she decided to drink some juice. Denise mixed a sachet of pineapple juice powder in a pitcher of cold water. What type of mixture did she make by doing such? |
Homogenous Mixture |
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The "clouds of probability" where electrons are likely to be found |
Orbitals |
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The study of matter that is composed principally by hydrocarbons |
Organic Chemistry |
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Suppose Carbon has an atomic mass of 14amu and atomic mass number of 6 while Nitrogen has an atomic mass of 15 amu and an atomic number of 7, what type of substances are they? |
Isotones |
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How many significant figures does 0.0325 have? |
3 |
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What do you get when you divide moles of solute from kilograms of solvent |
Molality |
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This molecule has molecular mass of 261g/mol |
Ba(NO3)2 |
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Ch4 |
compound |
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NaCl |
Compound |
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H2O |
Compound |
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To which subatomic particle can the volume of an atom be attributed |
Nucleus |
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Neutrons and protons are located in the orbitals |
False(Nucleus) |
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The closeness of measurement with each other is referred to as precision |
True |
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Among the four IMFAs, ion-dipole bonding is the strongest |
True |
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The higher the vapor pressure of a molecule, the stronger IMFA it has |
False (Lower Vapor Pressure) |
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All digits including zeros between non-zeros are significant |
True |
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Accuracy refers to the closeness of measurements to the true value |
True |
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John Dalton proposed the Solid Sphere Model of Atom in 1830 |
False (1803) |
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If you can see two or more phase in a compound's composition, this is a heterogenous mixture |
True |
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The value of h or Planck's constant is 6.626×10^-34 J•s |
True |
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When an electron jumps from 2nd to 7th energy level, it emits energy |
False (Absorbs Energy) |
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Heart of chemistry |
Matter and Energy |
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Four IMFA |
1. London Dispersion Forces 2. Dipol-Dipole Forces 3. Ion-Dipole Forces 4. Hydrogen Bonding |
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Components of Solution |
Solvent and Solute |
