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6.5 Matter Review

6.5 Matter Unit Test Review

QuestionAnswer
The basic building blocks of all matter are... Atoms
What makes an element unique? Protons
O2 is an ______________ because it has one type of atom. element
Which subatomic particles form chemical bonds? electrons
How many different types molecules are in the chemical change of... 2O2 + H2O + CO2 + C2OH2 → 3CO2 + O2 + 2H2 5
How many different types compounds are in the chemical change of... 2O2 + H2O + CO2 + C2OH2 → 3CO2 + O2 + H2 3
Which side is the reactant side of the equation? 2O2 + H2O + CO2 + C2OH2 → 3CO2 + O2 + 2H2 The left side
Which side is the product side of the equation? 2O2 + H2O + CO2 + C2OH2 → 3CO2 + O2 + 2H2 The right side
In a chemical reaction the number of atoms on the reactant side will ________the number of atoms on the product side. equal
In a chemical reaction the atoms of the reactants _____________ into new products. rearrange
What is the most abundant element in our atmosphere? Nitrogen 78%
What element is most abundant in Earth's Crust and Oceans? Oxygen
True or false? It is possible for two different atoms to have the same number of neutrons. True
The number of __________ make each atom of different elements unique. Protons
Atoms of the same element have equal number of __________ and ___________. Protons and electrons are always the same number.
Protons are ____________ (inside or outside) the nucleus and have a _______ charge. Protons are inside nucleus and positive.
Electrons are ___________ (inside or outside) the nucleus and have a __________ charge. Electrons are outside the nucleus and have a negative charge.
Neutrons are ______________ (inside or outside) the nucleus and have a _____________ charge. Neutrons are inside the nucleus and have no charge. They are neutral.
The overall charge of an atom is neutral because.... Atoms have the same number of Protons which are positive and electrons which are negative. Therefore, the charge for the atom is neutral.
Created by: Johnsopd
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