Rates if Reaction GCSE Cousrework

Introduction I am investigating what affects the rate at which to reactants react and fall upon a product. The two reactants in fussy ar stain (CaCO3) and hydrochloric acid (2HCl); the products that they produce be coulomb dioxide (CO2), water (H20) and a calcium chloride (CaCl2). The product that will be measured (to represent that the reaction has taken place) will be carbon dioxide, as a gas it can slowly be bubbled rack up and measured in burette. The analyse will be prison term related e.g. sightedness how long the mixture took to fill a 50 ml burette with carbon dioxide. Values and Variables The definition of a covariant star is anything that changes or can be changed. The definition of a value is how much something is worth or what groups it can be put into. There ar three eccentrics of values (which in turn can be split into 3 categories of transformation depending what go in the experiment they play): h Continuous Values- This in ageless is one that can g o on forever and be potentially any number. Examples of this are size, time, volume and mass. They are cook by only by the degree of accuracy you are going to. For instance they are often (for practicality) rounded to a certain point.

h Discrete values- These are similar to constant plainly they tend to increase in steps and could in some cases seem to go on continuously barely not in reality doesnt. Examples of this are shoe size or trouser waist size. h Categorical values- This display case of variable isnt defined by a value or number, instead it is by the presence of a characteristic that they are define d. They are for example shape, hair colour, ! make of car and so on The 3 categories of variable are defined by what part in the... If you want to get a full essay, orderliness it on our website: BestEssayCheap.com

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