LA PURISIMA CONCEPCION ACADEMY (Formerly Mataasnakahoy High School ) Committed to Faithful Service; Inspired by Love FOURTH QUARTER LEARNING PLAN 4.1 Understanding by Design (UBD) Plan in Science and Technology III ( Chemistry ) ____________________________________________________________________________ Topic: Chemical Accounting Subject Area: Chemistry Big Ideas: The Chemical Reactions Year Level: Third Year Allocated
Premium Chemical reaction
CRYSTALLISATION April 4‚ 2012 OBJECTIVE: Chemical compounds that contain discrete water molecules as part of their crystalline structure are called hydrates. Hydrates occur quite commonly among chemical substances‚ especially among ionic substances. More often than not‚ such compounds are either prepared in‚ or are recrystallized from‚ aqueous solutions. Hydrates exist for ionic compounds most commonly‚ but hydrates of polar and non polar covalent molecules are also known. In this experiment‚ you
Premium Water Chemistry Oxygen
then they are NOT significant NOTES: -The electron was discovered by using experiments with CATHODE rays in the late 1800s -Ernest Rutherford discovered the nucleus in 1911 -Atoms of different elements combine in whole number ratios to make compounds. -In chemical reactions‚ atoms are combined‚ separated o rearranged. -All matter is composed of extremely small particles called atoms. -Atoms may have different isotopes (basically a different number of neutrons in the nucleus) and hence
Premium Ion Chemical bond Atom
are soluble in polar solvents ▫ H2O and CH3CH2OH (ethanol) are miscible because the broken H-bonds in both pure liquids are re-established in the mixture ▫ More –OH groups and more polar bonds within a molecule increases the solubility in water Q. Covalent-network solids are not soluble in polar or non-polar solvents. Why? 6 Factors Affecting Solubility • Non-polar substances are soluble in non-polar solvents • The number of C atoms in a chain affects solubility ▫ The more hydrophobic C atoms‚ the
Premium Solubility Solvent
Demonstrate a knowledge of Organic Chemistry (Optional Element) LEARNING OUTCOME | ASSESSMENT CRITERIA | 1. Describe composition of matter and chemical change. | 1.1 Describe the nature of matter in terms of atoms and molecules‚ elements and compounds . 1.2 Describe atomic structure and electron configuration.1.3 Describe chemical change in terms of
Premium Chemistry Carbon Atom
correct answer and 1 mark will be deducted for each wrong answer. Ball point pen can be used for darkening but once darkened cannot be erased) (Uploading of correct answer in the internet: 07.02.2011) CHEMISTRY SECTION 1. Which of the following compound on boiling with water produces ammonia gas (a) Mg3N2 (b) NH4Cl (c) NaNO2 (d) only (a) and (b) 2. Which of the following is not a redox reaction (equations are not balanced) (a) Sn + NaOH → Na2SnO3 + H2 (b) NH4NO3 → N2O + H2O (c) PbO + KOH → K2PbO2
Premium Orders of magnitude Specific heat capacity Ionic bond
The lattice energy value obtained from the Born-Haber cycle is derived from experimental data. It is also possible to calculate a theoretical value for lattice energy by assuming the compound is fully ionic. For ionic compounds with high covalent character‚ the difference between the experimental and theoretical values would be quite significant. Unlike the Born- Haber cycle‚ the energy level diagram must have an energy axis and a datum line. The datum line is
Premium Temperature Oxygen Hydrogen
qualitatively different as the character of the bond changes quantitatively‚ that it remains useful and customary to differentiate between the bonds that cause these different properties of condensed matter. In the simplest view of a so-called ’covalent’ bond‚ one or more electrons (often a pair
Premium Chemical bond Electron Atom
Chapter 4 Carbon and the Molecular Diversity of Life Lecture Outline Overview: Carbon – The Backbone of Biological Molecules * Although cells are 70–95% water‚ the rest consists mostly of carbon-based compounds. * Carbon is unparalleled in its ability to form large‚ complex‚ and diverse molecules. * Carbon accounts for the diversity of biological molecules and has made possible the great diversity of living things. * Proteins‚ DNA‚ carbohydrates‚ and other molecules that
Premium Carbon Atom Oxygen
| | | | | 4‚5 | 3.1 The Applications of Hess’s Law | | | | | | 4.0 Standard Molar Enthalpy Change of Formation‚ ΔHof | | | | 6‚7 | 4.1 The Stability of A Compound | | | | | | | 4.2 Using ΔHof Values To Predict The Relative Stability Of A Compound | | | 5.0 Standard Molar Enthalpy Change of Combustion‚ ΔHoc | | | 8‚9 5.1 Standard Enthalpy Change of Combustion and Molecular Structure | | | 6.0 Standard
Free Enthalpy Thermodynamics Energy