By RoseMarie Gallagher, Paul Ingram
This publication meets the wishes of all scholars following the Cambridge IGCSE syllabus for Chemistry. up-to-date for the latest syllabus and the newest medical advancements, it covers all elements of the syllabus content material in an enticing and interesting structure for either local and non-native audio system of English. each one e-book is observed via a loose CD which supplies a wealth of help for college students, comparable to useful investigations, perform exam-questions and revision information. An accompanying Teacher's consultant and Revision advisor also are to be had. totally counseled by means of Cambridge foreign Examinations.
Read Online or Download Complete Chemistry for Cambridge IGCSE PDF
Best teen & young adult books
In 1876, Alexander Graham Bell uttered the phrases that might inaugurate a brand new period in human conversation: 'Mr. Watson, come the following, i would like to work out you'. Bell was once conversing via his new invention: the phone. even though his identify is the 1st to be linked to this now ubiquitous gadget, Bell used to be now not operating in a vacuum or totally on his personal.
From the best tragedy of the twentieth century rose a new release of writers decided to inform their tales and stick with it the legacy of these who perished. This identify presents a serious viewpoint at the works that captured this somber interval in Western heritage.
Lula chicken is beautiful, humorous and dreading her birthday since you cannot flip sixteen if you will have by no means been kissed . . . so why does each boy in Hambledon run a mile the second one she bats her eyelids? the truth is, they worry for his or her lives. hearsay has it Lula's been jinxed! And it isn't as though that is her in basic terms challenge: Lula thinks she has a stalker, her dad retains sneaking out at evening with a lady's purse, and a mysterious robbery is threatening to carry town to its knees.
True-crime real divulge of LAPD police payoffs, graft, political corruption and prostitution in Nineteen Forties l. a. and Hollywood written via LAPD Vice Squad Sgt. Charles Stoker. Twenty-years prior to SERPICO there has been STOKER.
- The Witch of Agnesi (Bonnie Pinkwater series)
- Knight Angels: Book Of Love (Book One)
- The Rubaiyat of Omar Khayyam (Bloom's Modern Critical Interpretations)
- The Czech Republic (Arbitrary Borders)
- Percy Jackson - Der Fluch des Titanen
Extra info for Complete Chemistry for Cambridge IGCSE
This giant structure is the compound sodium chloride, or common salt. Since it is made of ions, sodium chloride is called an ionic compound. It contains one Na1 ion for each Cl2 ion, so its formula is NaCl. The charges in the structure add up to zero: the charge on each sodium ion is 11 the charge on each chloride ion is 12 total charge 0 So the compound has no overall charge. 50 These polystyrene balls were given opposite charges. So they are attracted to each other, and cling together. The same happens with ions of opposite charge.
Hydrogen A hydrogen atom has only one shell, with one electron. The shell can hold two electrons. When two hydrogen atoms get close enough, their shells overlap and then they can share electrons. Like this: two hydrogen atoms H a hydrogen molecule, H2 H H H a shared pair of electrons So each has gained a full shell of two electrons, like helium atoms. The bond between the atoms Each hydrogen atom has a positive nucleus. Both nuclei attract the shared electrons – and this strong force of attraction holds the two atoms together.
What signs are there that a chemical change has taken place? 3 Is it a chemical change or a physical change? Give reasons. 2 Why do atoms form bonds? The reaction between sodium and chlorine Sodium and chlorine are both elements. When sodium is heated and placed in a jar of chlorine, it burns with a bright flame. The result is a white solid that has to be scraped from the sides of the jar. It looks completely different from the sodium and chlorine. So a chemical reaction has taken place. The white solid is sodium chloride.