chemistry

Script of teacher and student dialogue The scientific approach is the scientific framework of learning that is carried by the Curriculum 2013. Steps on a scientific approach is a form of adaptation of scientific steps in science. The learning process can be matched by a scientific process, therefore the 2013 Curriculum mandates the essence of a scientific approach in learning.  The scientific approach is believed to be a golden tool for the development and development of students' attitudes, skills, and knowledge.  In approaches or work processes that meet the scientific criteria, scientists are more concerned with inductive reasoning than deductive reasoning.  Among the saintific approaches are: 1. comucating skill Communication is the main activity of human in everyday life. Communication skills are the ability, intelligence, and communication skills. Communication is the capital and key suses in association and career because only with communication a good rel...

  Compare Tell what is the same about two or more things  Contrast Tell what is different about two or more things Double Bubble Maps •  It is a great way to organize your thoughts when you are comparing and contrasting two things. •  In the middle you put how the two objects are alike. • On the sides you put how the objects are different. What can we compare and contrast? •          Books •          People •          Objects •          Animals •          Places •          Music •          Events Calcium Vs Strontium : Compare and Contrast Calcium    Calcium is a chemical element with symbol Ca and atomic number 20. Calcium is a soft grayis...

    Corrosion is the deterioration of a metal as a result of chemical reactions between it and the surrounding environment. Both the type of metal and the environmental conditions, particularly gasses that are in contact with the metal, determine the form and rate of deterioration. Do All Metals Corrode?    All metals can corrode. Some, like pure iron, corrode quickly. Stainless steel, however, which combines iron and other alloys, is slower to corrode and is therefore used more frequently. All small group of metals, called the Noble Metals, are much less reactive than others. As a result, they corrode rarely. They are, in fact, the only metals that can be found in nature in their pure form. The Noble Metals, not surprisingly, are often very valuable. They include copper, palladium, silver, platinum, and gold. Types of Corrosion There are many different reasons for metal corrosion. Some can be avoided by adding alloys to a pure metal. Others can...

Acid a substance that produces hydrogen ions in aqueous solution; a proton donor. Alkali metal a Group 1 metal. Alkaline earth metal a Group 2 metal. Alkane a saturated hydrocarbon with the general formula C n H 2n 12. Avogadro's number the number of atoms in exactly 12 grams of pure 12C, equal to 6.02 x 10 23 . Base a substance that produces hydroxide ions in aqueous solution; a proton acceptor. Bond (chemical bond) the force that holds two atoms together in a compound. Bond energy the energy required to break a given chemical bond. Bond length the distance between the nuclei of the two atoms that are connected by a bond. Bonding pair an electron pair found in the space between two atoms. Calorie a unit of measurement for energy; one calorie is the quantity of energy required to heat one gram of water by one Celsius degree. Calorimetry the science of measuring heat flow. Density a property of matter representing the mass per unit volume. Elec...