The atom
The negatively charged particle found outside the nucleus.
What is electrons
An atom that loses electrons becomes this.
What is positively charged
This pH value is considered neutral.
What is 7
What is the reactants?
The arrow in a chemical reaction means _____
The atomic number tells you how many of these an atom has.
What is protons
An atom that gains electrons will become this.
What is negatively charged
An acid gives off this ion in water
What is H+
A sign of a chemical reaction that shows light/temperature change?
What is an energy change?
An atom that has gained or lost electrons.
What is an ion?
The two subatomic particles found in the nucleus
What is protons and neutrons
Atoms with opposite charges are likely to do this.
A base gives off this ion in water
What is OH-
This happens to matter during a chemical reaction
What is changes form (transforms)
The center of the atom that contains protons and neutrons.
What is the nucleus?
This subatomic particle determines an atoms identity
what is proton
Two atoms that are positively charged will _________.
What is "not bond"?
This is the pH range for a weak base
What is 8-11?
The products of a neutralization reaction
What is water and salt?
When something changes shape or state but not its identity.
What is physical change
Gaining or losing this subatomic particle give an atom a positive or negative charge
What is electron
Atoms form bonds mainly to become _____.
What is stable "happy"
This determines whether an acid/base is strong or weak
What is the amount of H+ or OH - ions
What is color/odor change, energy change, formation of a precipitate, formation of a gas
In a closed system matter should stay the same from beginning to end according to this law.
The law of conservation of matter