Abeka Chemistry Chpt 1-5 Test Review fully solved study guide (100% accurate expert solutions)download to pass

what are the smallest particles into which an element may be broken down without changing the identity of the element? atoms list the equivalent for 1 millimeter of mercury (1 mmHg) in torr 1 torr Brainpower Read More Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:00 / 0:15 Full screen what is the number of protons in an atom? atomic number what does standard atmospheric pressure (atm) equal in torr 760 torr what isotope is the atomic mass unit defined relative to carbon-12 which step of the scientific method involved thinking about nature to develop an idea about how something works? hypothesizing what is a microsecond? 10⁻⁶ s what is standard temperature and pressure (STP)? 273.15 K and 760 torr how many atoms are in exactly one mole of atoms? 6.022 x 10²³ what is the Celsius temperature equal to 0 K -273.15° C the instrument used to measure atmospheric pressusre barometer the amount of force exerted upon a surface per unit of area pressure in the ____ state of matter, particles have enough energy to move freely but not enough energy to overcome their attraction for each other liquid how closely a measured value matches the actual value accuracy the dense central portion of an atom is called the nucleus the link between the microscopic and macroscopic levels of chemistry is Avogadro's number the formula for copper (II) chloride CuCl₂ which law implies that, at constant temperature and pressure, the molar volume of an ideal gas is constant Avogadro's law how many significant figures does the number 72,090 have 4 how many significant figures does the number 7.200 have 4 a statement to describe the theoretical behavior of any ideal gas as it is cooled to absolute zero (0 K) at constant pressusre the volume decreases until it becomes zero at 0 K list the assumptions of the kinetic theory of matter 1. gas molecules are in constant motion 2. gas molecules undergo elastic collisions 3. the kinetic energy of gas molecules is directly related to temp. 4. gas molecules are far apart and have negligible volume compared to the volume of the gas 5. gas molecules have negligible attractive forces. a statement about gold(III) ion (Au³⁺) Gold (III) has three fewer electrons than a neutral gold atom. convert 3.5 m to dm 35 dm convert 5.4 m to km .0054 km is browning meat a chemical or physical change chemical is melting wax a chemical or physical change physical