Chapter 1 Flashcards
The smallest particle of an element that keeps the properties of the element.
Atom
Properties that depend upon the amount of matter present in a sample.
Extensive properties
A form of matter that contains two or more elements chemically combined in a fixed proportion.
Compound
A synonym for “homogeneous mixture.”
Solution
A mixture that contains physically distinct parts, each with different properties. Has two or more phases.
Heterogeneous mixture
The study of matter and its changes.
Chemistry
Elements in the same _______ have similar chemical properties.
Group
A substance present after a chemical reaction (water in this case).
Product
Anything that has mass and takes up space.
Matter
A form of matter having a definite shape and volume.
Solid
Dull non-conductors, found to the right of the metalloids.
Non-metals
A mixture that is uniform in its properties throughout given samples.
Homogeneous mixture
Label the diagram showing the different categories of matter:
Vertical columns in the periodic table.
Groups
Horizontal rows in the periodic table.
Periods
A substance present before a chemical reaction (hydrogen and oxygen in this case).
Reactant
Properties that can be observed or measured without changing the identity of the matter.
Physical properties
A form of matter having a definite volume but indefinite shape.
Liquid
A form of matter that includes both elements and compounds.
Pure Substances
A form of matter having neither definite shape nor volume.
Gas
A change in a material that does not involve a change in its identity.
Physical change
Refers to the ability of a substance to undergo a specific chemical change.
Chemical property
Properties that do not depend upon the amount of matter present in a sample
Intensive properties
The elements in group VIIIA.
Noble Gases
A high temperature physical state of matter in which atoms lose most of their electrons.
Plasma
Elements that have properties intermediate between those of metals and non-metals. Shown in green on this periodic table.
Metalloids
Shiny conductors of heat and electricity, found to the left of the metalloids. Shown in blue on this periodic table.
Metals
A change in which one or more forms of matter are changed into one or more new forms of matter.
Chemical change (reaction)
A form of matter that cannot be chemically broken down into a simpler form of matter.
Element
A physical blend of two or more components that keep their own identities.
Mixture
A form of matter having a fixed composition.
Pure substance
Explain what happens in each different section of the heating curve. If this curve represents water at sea level, what temperatures do B and D correspond with?
B - 0°C; D - 100°C
