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 specific ar stain (CaCO3) and hydrochloric acid (2HCl); the products that they produce be carbon copy 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 visitation will be prison term related e.g. visual perception how long the mixture took to fill a 50 ml burette with carbon dioxide. Values and Variables The definition of a changeable 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 atomic number 18 three eccentrics of values (which in turn can be split into 3 categories of variety depending what recess in the experiment they play): h Continuous Values- This v ariable is one that can go on forever and be potentially any number. Examples of this atomic number 18 size of it, time, volume and mass. They are garble 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 aeonian plainly they tend to increase in steps and could in some cases seem to go on continuously exactly not in reality doesnt. Examples of this are shoe size or trouser waist size. h Categorical values- This character of variable isnt defined by a value or number, instead it is by the prese nce of a characteristic that they are define! d. They are for example shape, hair colour, make of car and so forth The 3 categories of variable are defined by what part in the... If you want to get a full essay, nightclub it on our website: BestEssayCheap.com

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