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ATI TEAS 7 CHEMISTRY EXAM QUESTIONS AND ANSWERS
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ATI TEAS 7 CHEMISTRY EXAM QUESTIONS AND ANSWERS
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ATI TEAS 7 CHEMISTRY EXAMQUESTIONS AND ANSWERS
Matter - Answer-Anything that has mass and takes up space.
Mass - Answer-the quantity/measure of the amount of matter in an object.
Volume - Answer-amount of space an object takes up.
How can you determine if matter is solid, liquid, and gas? - Answer-It can be determined
by how far apart the molecules are and how fast the molecules are moving.
Solid - Answer-fixed shape and volume
Liquid - Answer-fixed volume, no fixed shape
Gas - Answer-neither definite volume nor definite shape
Solid to Liquid - Answer-melting
Liquid to Solid - Answer-Freezing
Solid to Gas - Answer-sublimation
Gas to Solid - Answer-deposition
Gas to Liquid - Answer-condensation
Liquid to Gas - Answer-vaporization/evaporation
As temperature increases, atmospheric pressure - Answer-decreases
As temperature decreases, atmospheric pressure - Answer-increases
In a heating curve, - Answer-Molecules absorb heat energy, increasing the temperature.
This decreases cohesion, causing molecules to spread apart.
In a cooling curve, - Answer-Molecules release energy, decreasing the temperature.
This increases cohesion, causing molecules to come closer together.
Pure Substance - Answer-A sample of matter, either a single element or a single
compound, that has definite chemical and physical properties.
, Mixture - Answer-Material composed of two or more elements or compounds that are
physically mixed together but not chemically combined.
Element - Answer-A pure substance made of only one kind of atom.
Compound - Answer-A substance made up of atoms of two or more different elements
joined by chemical bonds.
Homogenous Mixture - Answer-Composition varies, no distinct boundaries. Ex. Salt and
water.
Heterozygous Mixture - Answer-Distinct boundaries and composition varies. Ex. Oil and
water.
Subatomic Particles - Answer-protons, neutrons, electrons
Molecule - Answer-two or more different or similar atoms held together by covalent
bonds
Atom - Answer-Basic unit of matter; smallest part of an element
Diatomic Element - Answer-element whose atoms can form covalent bonds with
another atom of the same element
Seven Diatomic Elements - Answer-H2, F2, Br2, I2, N2, O2, CI2.
Atomic number - Answer-number of protons. from top left to bottom right in periodic
table. measured in amu.
Groups/families (periodic table) - Answer-vertical columns
Periods (periodic table) - Answer-horizontal rows
Properties of Metal - Answer-Shiny, malleable, ductile, good conductors of heat and
electricity, forms positive ions (cations), high density, high melting and boiling point.
Properties of Nonmetals - Answer-dull, brittle, poor conductors of electricity and heat,
low density, low boiling and melting points, forms both cations and anions.
Properties of Metalloids - Answer-properties of both metals and nonmetals; okay
conductors, can be shiny or dull
Main Group Elements, Group A - Answer-Alkali metals, alkaline earth metals, halogens,
and noble gases
Alkali Metals (group 1) - Answer-highly reactive, form cations with +1 charge.
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