t7 Flashcards
1
Q
in a chemical reaction, 2+ substances undergo _________- of ____ to form other substances
A
reorganization of atoms
2
Q
_______ are substances that go into a chemical reaction
A
reactants
3
Q
_______ are substances produced by a chemical reaction
A
products
4
Q
from the law of ____________- we know that atoms are neither created or lost, in a chemical reaction, they only _______—
A
law of conservation of mass
change partners
5
Q
chemical bonds are ____ that causes a group of __________
A
forces
a group of atoms behave as an unit
6
Q
energy is ________ in bonds
A
stored
7
Q
energy is add to _________ bonds
A
break
8
Q
energy is ___ when bonds are formed
A
released
9
Q
all chemical reactions involve changes in ______________
A
energy
10
Q
name of energy that is absorbed and energy that is released
A
exothermic = gives off aka release heat endothermic = absorb heat
