Term 1 and 2 Powerpoints
... thinking about our environment and the things that we burn which pollute it. I then thought of where all the statistics we hear about come from, and how the claims are substantiated. How do scientists know exactly what percent our ozone layer has deteriorated, and what percent of our atmosphere is m ...
... thinking about our environment and the things that we burn which pollute it. I then thought of where all the statistics we hear about come from, and how the claims are substantiated. How do scientists know exactly what percent our ozone layer has deteriorated, and what percent of our atmosphere is m ...
6. NaF
... the higher group number is written second in the name. Rule 2. If both elements are in the same group, the element with the higher period number is written first in the name. Rule 3. The second element in the name is named as if it were an anion, i.e., by adding the suffix -ide to the name of the el ...
... the higher group number is written second in the name. Rule 2. If both elements are in the same group, the element with the higher period number is written first in the name. Rule 3. The second element in the name is named as if it were an anion, i.e., by adding the suffix -ide to the name of the el ...
File
... This is the weight in grams of an ionic (formula) or covalent compound (molecular). To be able to calculate this we need to understand molar mass. First, it is a mass, so it has units of mass, commonly the gram. Second, it concerns the mole (Avogadro's number). Whether you're dealing with elements o ...
... This is the weight in grams of an ionic (formula) or covalent compound (molecular). To be able to calculate this we need to understand molar mass. First, it is a mass, so it has units of mass, commonly the gram. Second, it concerns the mole (Avogadro's number). Whether you're dealing with elements o ...
N5 Chemistry Summary notes 2017
... Everything is made up of tiny particles called atoms. Atoms are mostly empty space made up of smaller sub-atomic particles. At the centre of the atom is the nucleus. This contains two types of particles, called protons and neutrons. Spinning around the nucleus are very fast moving particles called e ...
... Everything is made up of tiny particles called atoms. Atoms are mostly empty space made up of smaller sub-atomic particles. At the centre of the atom is the nucleus. This contains two types of particles, called protons and neutrons. Spinning around the nucleus are very fast moving particles called e ...
Document
... The molar mass (in grams) of any substance is always numerically equal to its formula weight (in amu): One H2O molecule weighs 18.0 amu1 mol of H2O weighs 18.0g. One NO3– ion weighs 62.0 amu 1 mol of NO3– weighs 62.0 g One NaCl unit weighs 58.5 amu 1 mol of NaCl weighs 58.5 g. Interconverting M ...
... The molar mass (in grams) of any substance is always numerically equal to its formula weight (in amu): One H2O molecule weighs 18.0 amu1 mol of H2O weighs 18.0g. One NO3– ion weighs 62.0 amu 1 mol of NO3– weighs 62.0 g One NaCl unit weighs 58.5 amu 1 mol of NaCl weighs 58.5 g. Interconverting M ...
Introductory Chemistry I
... c. HCl(aq) + KOH(aq) = H2O(l) + Cl-aq) + K+(aq) d. Cu(s) + SO3-2(aq) + 2 H+(aq) = Cu2+ + SO2(g) + H2O(l) e. Zn + 2 Cl- = ZnCl2 (s) 4. The maximum number of electrons that can occupy the 3d orbitals is a. 5 b. 6 c. 10 d. 14 e. 18 5. Let’s say that you are examining the outermost electrons in a ground ...
... c. HCl(aq) + KOH(aq) = H2O(l) + Cl-aq) + K+(aq) d. Cu(s) + SO3-2(aq) + 2 H+(aq) = Cu2+ + SO2(g) + H2O(l) e. Zn + 2 Cl- = ZnCl2 (s) 4. The maximum number of electrons that can occupy the 3d orbitals is a. 5 b. 6 c. 10 d. 14 e. 18 5. Let’s say that you are examining the outermost electrons in a ground ...
MULTIPLE CHOICE
... D) ionizes 3) A weak electrolyte exists predominantly as __________ in solution. A) atoms B) ions C) molecules D) electrons ...
... D) ionizes 3) A weak electrolyte exists predominantly as __________ in solution. A) atoms B) ions C) molecules D) electrons ...
Gas Laws
... 4. A mixture in which the particles are so small that they will not reflect the “light” from a laser are called ________. 5. A solution that contains a large amount of solute per amount of solvent is called a _____________ solution. 6. What is the term that is used to describe a solid being formed w ...
... 4. A mixture in which the particles are so small that they will not reflect the “light” from a laser are called ________. 5. A solution that contains a large amount of solute per amount of solvent is called a _____________ solution. 6. What is the term that is used to describe a solid being formed w ...
Final competitions (29.03.2008) Competing equilibria Complex
... moles, which is equal to 2,17·10−3 mola × 419,8 g/mol = 0,911 g of KI3. It was given in the text that 0,950g of salt A was used for titration, so the salt A is salt hydrate containing 0,950g − 0,911 g = 0,039 g of water which is equal to n(H2O) = 0,039 g / 18,02 g/mol = 2,17·10−3 moles of H2O. In co ...
... moles, which is equal to 2,17·10−3 mola × 419,8 g/mol = 0,911 g of KI3. It was given in the text that 0,950g of salt A was used for titration, so the salt A is salt hydrate containing 0,950g − 0,911 g = 0,039 g of water which is equal to n(H2O) = 0,039 g / 18,02 g/mol = 2,17·10−3 moles of H2O. In co ...
Unit 3 Notes
... Mass of crucible + Mg ribbon Calculated mass of Mg ribbon Mass of crucible + MgO Calculated mass of MgO 2Mg + O2 ...
... Mass of crucible + Mg ribbon Calculated mass of Mg ribbon Mass of crucible + MgO Calculated mass of MgO 2Mg + O2 ...