NLN PAX EXAM SCIENCE With Complete Solutions 100% Correct Graded A+

NLN PAX EXAM SCIENCE With Complete Solutions 100% Correct Graded A+ Law of Conservation of Mass - ANSWER Matter is not created nor destroyed in any chemical or physical change E= mc^2 - ANSWER Energy (e)= mass(m) x speed of light (c) -basis is the law of conservation of mass and energy significant figures (sig figs) - ANSWER all the digits that are known in a measurement, plus the last digit that is estimated Kelvin scale - ANSWER theoretical temperature that is the lowest called absolute zero absolute zero - ANSWER The temperature at which no more energy can be removed from matter What is absolute zero on the Celsius scale? - ANSWER -273.150 degrees C When making use of the system of scientific notation in expressing large numbers, you need to. . . - ANSWER shift the decimal point until you have just 2 digits on the left and then show the number of decimal points moves as the exponent of 10 precision - ANSWER a measure of how close a series of measurements are to one another; indication of the realism or possibility of a given measurement accuracy - ANSWER gives an indication of the proximity of a measurement to its known or accepted value Law of Conservation of Energy - ANSWER Energy cannot be created or destroyed but can only be changed from one form to another