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2024 NURSING 104 CHEMISTRY EXAM WITH CORRECT ANSWERS
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2024 NURSING 104 CHEMISTRY EXAM WITH CORRECT ANSWERS
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2024 NURSING 104 CHEMISTRYEXAM WITH CORRECT ANSWERS
Define what is chemistry - CORRECT-ANSWERSThe science that deals with
the materials of the universe and the changes that these materials undergo
structure of an atom - CORRECT-ANSWERS- is made up of 3 smaller particles
- protons and neutrons are found in the nucleus
- electrons orbit around the outside of the nucleus
define element - CORRECT-ANSWERSsimplest substances therefore cannot
be broken down using chemical reaction
define atom - CORRECT-ANSWERSthe smallest particle of a chemical that can
exist
define atomic number - CORRECT-ANSWERSthe number of protons in the
nucleus of an atom
define mass number - CORRECT-ANSWERSthe total number of protons and
neutrons in a nucleus.
define relative atomic mass - CORRECT-ANSWERSaverage mass of the atoms
of an element
differentiate between an atom and an ion - CORRECT-ANSWERSatoms
- electrically neutral particles with equal numbers of protons and electrons
ions
- an atom that has become charged by either gaining or losing electrons in
its valence shell
define compound - CORRECT-ANSWERSa molecule with at least 2 different
atoms that are chemically bonded
examples of compounds - CORRECT-ANSWERSsucrose, milk, gluten,
chocolate, coffee
The 3 states of Matter - CORRECT-ANSWERS1. Solid
- rigid/fixed shape
- fixed shape
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