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CHEM 152 - INTRODUCTION TO GENERAL CHEMISTRY 2025-2026|WITH QS AND AS|100% PASS
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Scientific Method A series of steps followed to solve problems including collecting data, formulating a hypothesis, testing the hypothesis, and stating conclusions. Law statement of natural phenomena to which no exceptions are known under the given conditions SI units International System of Units speed distance/time
mega 10^ kilo 10^ centi 10^- milli 10^- micro 10^- derived units combinations of SI base units
Crystaline solid A solid that is made up of crystals in which particles are arranged in a regular, repeating pattern amorphous solid A solid made up of particles that are not arranged in a regular pattern properties of solids
Law of a Conservation of Mass Matter is not created nor destroyed in any chemical or physical change energy the capacity to do work work A result of a force moving an object a certain distance. exothermic reaction A reaction that releases energy in the form of heat endothermic reaction A reaction that ABSORBS energy in the form of heat Farenheit scale
a temperature scale that defines the freezing point of water as 32 degrees and the boiling point of water as 212 degrees Celsius to kelvin K = C + 273. Celsius scale the scale of temperature in which water freezes at 0° and boils at 100° under standard conditions. Kelvin scale The temperature scale on which zero is the temperature at which no more energy can be removed from matter specific heat capacity the energy required to raise the temperature of one gram of a substance by one degree Celsius
atomic mass The average mass of all the isotopes of an element periodic law when the elements are arranged in order of increasing atomic number, there is a periodic repetition of their physical and chemical properties alkali metals Group 1 1 electron in outer level (1+ charge cations)
transition metals Groups 3-12, 1-2 electrons in the outer energy level
grams of substance x 1 mole of substance / molar mass = answer how do you find percent composition?
non-electrolytes covalent compounds spectator ions Ions that do not take part in a chemical reaction and are found in solution both before and after the reaction
wavelength The distance between two corresponding parts of a wave wavelength and frequency -inversely related -the shorter the wavelength, the higher the frequency
