All posts tagged Chemistry

1.a) Bulk movement is the overall movement of a fluid. The molecules allmove in the same direction. Diffusion however is the random movement ofmolecules which usually results in a fairly even distribution. In otherwords the movement is not guaranteed to move in one direction but theprobability that it will move . . . Read more

ment is to explore the hardness of the water on campus. Hard water has been a problem for hundreds of years. One of the earliest references to the hardness or softness of water is in Hippocrates discourse on water quality in Fifth century B.C. Hard water causes many problems in . . . Read more

CHAPTER 32The tallest tree is the Redwood (Sequoia sempervirens) approx 110 mThe tallest Angiosperm is the Australian Eucalyptus regnansWater Uptake and transport (Fig. 32.1)= water is essential because: transport solute, cool the body, photosynthesis and Turgor pressureOsmosis- movement of H2) through a semi-impermeable membraneOsmotic potential ( o)-depend on dissolve solute: . . . Read more

ment is to explore the hardness of the water on campus. Hard water has been a problem for hundreds of years. One of the earliest references to the hardness or softness of water is in Hippocrates discourse on water quality in Fifth century B.C. Hard water causes many problems in . . . Read more

Section 2-1 The Nature of Matter (pages 35-39)This section identifies the three particles that make up atoms. It alsoexplains how atoms of the same element can have a different number ofneutrons and describes the two main types of chemical bonds. Atoms (page 35)1. The basic unit of matter is called . . . Read more

Photography is a very complex form of art, which uses standard chemicals and scientific equations. It is a chemical reaction, which occurs when light hits a film or paper emulsion. An emulsion is part of the film or paper, which is very sensitive to light. This is also the part . . . Read more

Centre No. Candidate No. Paper Reference(s) Surname Paper Reference Initial(s) 7 0 8 1 7081/02 0 2 Signature Examiner’s use only London Examinations GCE Chemistry Ordinary Level Paper 2 Monday 19 January 2009 – Morning Time: 2 hours Team Leader’s use only Question Leave Number Blank 1 2 3 4 . . . Read more

Chemistry in Everyday Life Chemistry in Everyday Life Chemistry is a big part of your everyday life. You find chemistry in daily life in the foods you eat, the air you breathe, your soap, your emotions and literally every object you can see or touch. Here’s a look at some . . . Read more