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q what are changes in mattermatter is able to undergo two fundamental kinds of changes changes that dont alter the composition of matter are called
q show the diffrent kind of matterliquid matter has a specific volume like a solid but flows and takes the shape of its container a liquid is
q describe about states of matterunder usual conditions matter exists in three different physical forms called the states of matter-solid or liquid
q show the chemical property of mattera chemical property explains the ability of a substance to combine with or change into one or more other
q illustrate the physical property of mattera physical property of a substance is a quality that can be observed and measured without changing the
q show the properties of mattereach of the material the stuff around us is matter a substance is matter which has a uniform and unchanging
q calculate the slope of a line from data pointscompute the slope of a line that contains these data points 30 cm3 60 g and 12 cm3 24 g to compute
q what is line graphsthe points on a line graph symbolize the intersection of data for two variables the independent variable is contrived on the
q illustrate diffrent types of graphscircle graphs a circle graph is utilized to show the parts of a fixed whole this kind of graph is occasionally
q what is grapha graph is a visual demonstrate of data demonstrating your data in graphs is able to reveal a pattern if one exists you will encounter
q what are the rules used for round off numbers1 if the digit to the instantaneous right of the last significant figure is less than five dont change
q what do you mean by rounding off numbersrounding off numbers while you report a calculation your answer should have no more significant figures
how lots of significant figures are in the following measurementsa 0002 849 kgb 40 030 kgimply rules 1-4 from above verify your answers by writing
q significant figures of the number of digitssignificant figures of the number of digits reported in a measurement signify how precise the
q what is percent errorquantities measured throughout an experiment are called experimental values the dissimilarity between an accepted value and an
q how reliable are measurementswhen scientists glance at measurements they want to know how accurate as well as how precise the measurements are
q show the dimensional analysisdimensional analysis dimensional analysis is a process of problem solving that focuses on the units that are used to
q show multiplying quantities written in scientific notationmultiplying quantities written in scientific notationsolve the following problem2 1014
q example to show scientific notationsolve the following problem245 1014 kg 400 1012 kgfirst articulate both quantities to the same power of ten
the surface area of the pacific ocean is 166000000000000m2 write this quantity in scientific notation to write the amount in scientific notation move
q scientific notation and dimensional analysisvery small and extremely large numbers can be compared more easily when they are converted into a form
q describe about temperature scalesthe temperature of an entity explains how hot or cold the object is relative to other objects scientists utilize
q show the units of measurementyou most likely know your height in feet and inches the majority people outside the united states however measure
laboratory safety during your observation of chemistry you will conduct experiments in the laboratory when working in the lab you are accountable for
q what do you eman by scientific researchpure research is prepared to gain knowledge for the sake of knowledge itself molina as well as rowlands