Atoms
Elements
Covalent Bonds
Ionic Bonds/Chemical reactions
Enzymes
100
the atom
What is the basic unit of matter?
100
a pure substance that cannot be broken down into other parts
What is an element?
100
atoms share electrons
What happens in a covalent bond?
100
ionic bonds
What are atoms giving up or gaining valence electrons?
100
catalyst
What is a substance that lowers the activation energy needed to start a chemical reaction?
200
Protons, neutrons, electrons
What are subatomic particles?
200
92 elements
What is the number of naturally occuring elements?
200
compounds in which the atoms are held together by covalent bonds
What are molecules?
200
an atom that carries an electric charge
What is an ion?
200
speeds up the rate of a chemical reactions
What is an enzyme?
300
subatomic particles with a positive charge
What are protons?
300
periods
What are the horizontal rows on the periodic table called?
300
single, double, and triple bonds
What are the different types of covalent bonds?
300
a chemical reaction
What is reorganizing atoms into different substances/combinations?
300
the macromolecule that is an enzyme
What is a protein?
400
neutrons
What are subatomic particles with no charge?
400
the vertical columns on the periodic table
What are groups?
400
an atom that can bond with many different atoms because of its four valence electrons
What is carbon?
400
the result chemical reactions
What is broken or formed bonds?
400
a specific spot on an enzyme where substrates bond with the enzyme
What is the active site?
500
subatomic particles with a negative charge
What are electrons?
500
one atom
What is the number of atoms that make up an element?
500
double-double carbon bond
What is the special bond carbon can form?
500
production of heat/light or the formations of gas, liquid, or solid
What are clues to a chemical reaction?
500
essential to life
What are enzymes to life?
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