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When you graph the motion of an object, you put ____ on the horizontal axis and ____ on the vertical axis.
nucleus
.5 m/s
time, distance
The masses are always equal.
8
mass of the products is equal to the mass of the reactants
Their outer energy levels have 8 valence electrons.
1
An atom with _____ valence electrons is most stable.
nucleus
.5 m/s
time, distance
The masses are always equal.
8
mass of the products is equal to the mass of the reactants
Their outer energy levels have 8 valence electrons.
1
In the chemical formula H2O, how many atoms of oxygen are represented?
nucleus
.5 m/s
time, distance
The masses are always equal.
8
mass of the products is equal to the mass of the reactants
Their outer energy levels have 8 valence electrons.
1
In a reaction that has one reactant and two products, the _____.
nucleus
.5 m/s
time, distance
The masses are always equal.
8
mass of the products is equal to the mass of the reactants
Their outer energy levels have 8 valence electrons.
1
A soccer ball takes 20 s to roll 10 m. What is the average speed of the soccer ball?
nucleus
.5 m/s
time, distance
The masses are always equal.
8
mass of the products is equal to the mass of the reactants
Their outer energy levels have 8 valence electrons.
1
Most of the mass of an atom is found in its ____.
nucleus
.5 m/s
time, distance
The masses are always equal.
8
mass of the products is equal to the mass of the reactants
Their outer energy levels have 8 valence electrons.
1
According to the law of conservation of mass, how does the mass of the products in a chemical reaction compare to the mass of the reactants?
nucleus
.5 m/s
time, distance
The masses are always equal.
8
mass of the products is equal to the mass of the reactants
Their outer energy levels have 8 valence electrons.
1
Why do the noble gases NOT form compounds readily?
nucleus
.5 m/s
time, distance
The masses are always equal.
8
mass of the products is equal to the mass of the reactants
Their outer energy levels have 8 valence electrons.
1
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