Inorganic Chemistry 412 / 512
... Give one example of an inorganic polymer that contains N in the polymer backbone, and state one interesting/useful physical or chemical property. [5] The ones we that we discussed in class: o oligo- or polyphosphazenes (such as (NPCl2)n) – we talked about synthesis and structures of these, some are ...
... Give one example of an inorganic polymer that contains N in the polymer backbone, and state one interesting/useful physical or chemical property. [5] The ones we that we discussed in class: o oligo- or polyphosphazenes (such as (NPCl2)n) – we talked about synthesis and structures of these, some are ...
Unit 3 Lesson 1
... atomic theory, stating that all matter is made up of atoms that cannot be created, divided, or destroyed. • This theory also stated that all atoms of a certain element are identical, but they differ from atoms of all other elements. • Every substance is made up of atoms combined in certain ways. Cop ...
... atomic theory, stating that all matter is made up of atoms that cannot be created, divided, or destroyed. • This theory also stated that all atoms of a certain element are identical, but they differ from atoms of all other elements. • Every substance is made up of atoms combined in certain ways. Cop ...
Chapter 7
... • How much oxygen is required to make 144 grams of water? • 2H2 + O2 → 2H2O • First determine how many moles of water you are trying to make. • Molar mass of water = 1.0079 (2) +15.999 = ...
... • How much oxygen is required to make 144 grams of water? • 2H2 + O2 → 2H2O • First determine how many moles of water you are trying to make. • Molar mass of water = 1.0079 (2) +15.999 = ...
English Medium
... stay in the bath room? 2. Mention the differences between evaporation and boiling? 3. What role does specific heat play in keeping a watermelon cool for a long time after removing it from a fridge? 4. Describe an activity to show that the water expands on freezing? 5. Explain the formation of dew wi ...
... stay in the bath room? 2. Mention the differences between evaporation and boiling? 3. What role does specific heat play in keeping a watermelon cool for a long time after removing it from a fridge? 4. Describe an activity to show that the water expands on freezing? 5. Explain the formation of dew wi ...
SAT - mvhs-fuhsd.org
... positron is ejected by the nucleus. The mass remains the same, but the atomic number decreases by 1. • 5326Fe ...
... positron is ejected by the nucleus. The mass remains the same, but the atomic number decreases by 1. • 5326Fe ...
Ch17-2 Driving Forces of Reactions
... What would the activation curve look like for a rapid reaction? What would happen if amount
... What would the activation curve look like for a rapid reaction? What would happen if amount
Atoms and nukes packet 2016
... 3. So Write this General Rule: If there is only one stable isotope of an element, its Average Atomic mass is : ...
... 3. So Write this General Rule: If there is only one stable isotope of an element, its Average Atomic mass is : ...
Atoms, Elements, and
... An Early Idea Democritus, who lived from about 460 B.C. to 370 B.C., was a Greek philosopher who thought the universe was made of empty space and tiny bits of stuff. He believed that the bits of stuff were so small they could no longer be divided into smaller pieces. He called these tiny pieces atom ...
... An Early Idea Democritus, who lived from about 460 B.C. to 370 B.C., was a Greek philosopher who thought the universe was made of empty space and tiny bits of stuff. He believed that the bits of stuff were so small they could no longer be divided into smaller pieces. He called these tiny pieces atom ...
THE ATOM Atoms are much too small for us to see
... numbertype of atom has a different atomic number. This is how the elements are arranged on the periodic table. Atomic Number = Number of protons OR Number of electrons Atomic Mass Protons and neutrons are about the same size and the have about the same mass. We randomly chose a unit to represent the ...
... numbertype of atom has a different atomic number. This is how the elements are arranged on the periodic table. Atomic Number = Number of protons OR Number of electrons Atomic Mass Protons and neutrons are about the same size and the have about the same mass. We randomly chose a unit to represent the ...
OCR A Level Physics B Delivery Guide Learner Resource 1: Atomic
... © OCR 2015 - This resource may be freely copied and distributed, as long as the OCR logo and this message remain intact and OCR is acknowledged as the originator of this work. OCR acknowledges the use of the following content: Please get in touch if you want to discuss the accessibility of resources ...
... © OCR 2015 - This resource may be freely copied and distributed, as long as the OCR logo and this message remain intact and OCR is acknowledged as the originator of this work. OCR acknowledges the use of the following content: Please get in touch if you want to discuss the accessibility of resources ...
6-2 Notes: The Atom
... because they are much smaller than an atom. The number of subatomic particles in an atom and the way they interact determine the _____________ of the atom. __________ are positively charged particles of the nucleus. The SI unit that describes the mass of a particle in an atom is the ________ ______ ...
... because they are much smaller than an atom. The number of subatomic particles in an atom and the way they interact determine the _____________ of the atom. __________ are positively charged particles of the nucleus. The SI unit that describes the mass of a particle in an atom is the ________ ______ ...
CHEM 101 Final (Term 141)
... substance B are lower than those for substance A. B) The pressure at the triple point, normal boiling and normal melting point for substance A are lower than those of substance B. C) The pressure at the triple point for substance A is higher than that of substance B, but the normal boiling and norma ...
... substance B are lower than those for substance A. B) The pressure at the triple point, normal boiling and normal melting point for substance A are lower than those of substance B. C) The pressure at the triple point for substance A is higher than that of substance B, but the normal boiling and norma ...
Chapter 28: Inside the Atom
... 28.2 Pauli exclusion principle According to the quantum theory, two electrons in an atom can never be in the same quantum state at the same time. This rule is known as the Pauli exclusion principle after Wolfgang Pauli, the physicist who discovered it. Once all the quantum states in the first ...
... 28.2 Pauli exclusion principle According to the quantum theory, two electrons in an atom can never be in the same quantum state at the same time. This rule is known as the Pauli exclusion principle after Wolfgang Pauli, the physicist who discovered it. Once all the quantum states in the first ...
CH. 3 - STOICHIOMETRY: CHEMICAL CALCULATIONS I. Molecular
... I. Molecular Masses and Formula Masses A. molecular mass - sum of masses of atoms represented in a molecular formula B. formula mass - sum of masses of atoms or ions present in a formula unit II. The Mole and Avogadro’s Number A. mole (mol) - amount of substance that contains as many elementary enti ...
... I. Molecular Masses and Formula Masses A. molecular mass - sum of masses of atoms represented in a molecular formula B. formula mass - sum of masses of atoms or ions present in a formula unit II. The Mole and Avogadro’s Number A. mole (mol) - amount of substance that contains as many elementary enti ...
Chemistry - Volusia County Schools
... (T02) explain scientific knowledge can change because it is often reexamined by new investigations which makes it more durable and robust (T02) recognize the Rutherford experiment and how it yielded evidence for the existence of the atomic nucleus ...
... (T02) explain scientific knowledge can change because it is often reexamined by new investigations which makes it more durable and robust (T02) recognize the Rutherford experiment and how it yielded evidence for the existence of the atomic nucleus ...
Chapter 7 – Chemical Formulas and Chemical
... equal to the charge of that ion. 8. Rules 1-7 apply to covalent compounds, but oxidation numbers can be assigned to ionic compounds. Examples: for monatomic ions the oxidation number is equal to the ionic charge. Ca+2 = +2 or I- = -1 Compound HF: F is the most electronegative element in the polar co ...
... equal to the charge of that ion. 8. Rules 1-7 apply to covalent compounds, but oxidation numbers can be assigned to ionic compounds. Examples: for monatomic ions the oxidation number is equal to the ionic charge. Ca+2 = +2 or I- = -1 Compound HF: F is the most electronegative element in the polar co ...
Activity 4 Are Atoms Indivisible?
... For several years there was no evidence to contradict either Thomson’s or Nagaoka’s atomic models. However, in the early 1900s, Ernest Rutherford, a New Zealand-born scientist, designed experiments to test the current model of an atom. In Rutherford’s experiment, alpha particles were sent as “missil ...
... For several years there was no evidence to contradict either Thomson’s or Nagaoka’s atomic models. However, in the early 1900s, Ernest Rutherford, a New Zealand-born scientist, designed experiments to test the current model of an atom. In Rutherford’s experiment, alpha particles were sent as “missil ...
Topic 4 Chemistry of the Elements of the Main Group
... electricity. Metals make crystal lattice structures in which electrons can flow freely. Metalloids or semi-metals show intermediate conduction properties (they are semiconductors). Their electronegativity values are close to 2. The valence electrons of metalloids are localised around the nucleus but ...
... electricity. Metals make crystal lattice structures in which electrons can flow freely. Metalloids or semi-metals show intermediate conduction properties (they are semiconductors). Their electronegativity values are close to 2. The valence electrons of metalloids are localised around the nucleus but ...
Types of Chemical Reactions
... 2. For each of the following reactants, use the activity series to determine whether the reaction would take place or not. If no reaction takes place, write NR in the blank. If a reaction does take place, write the formulas for the products of the reaction. (Hint: If an active metal replaces the hyd ...
... 2. For each of the following reactants, use the activity series to determine whether the reaction would take place or not. If no reaction takes place, write NR in the blank. If a reaction does take place, write the formulas for the products of the reaction. (Hint: If an active metal replaces the hyd ...
Lesson 1 - Bonding in compounds overview
... m.p.’s increase because the strength of the London dispersion forces increase with the increasing size of the molecule. So more Energy is needed to separate molecules. ...
... m.p.’s increase because the strength of the London dispersion forces increase with the increasing size of the molecule. So more Energy is needed to separate molecules. ...