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USE THE PERIODIC TABLE
How many valence electrons does sodium have?
This particle found in the nucleus has no charge.
This particle found in the nucleus has a positive charge.
This part of an atom contains most of its mass.
The atomic number tells you what?
Is this equation balanced or unbalanced?
H2 + O2 --> H2O
12g of Carbon react with 16g of Oxygen, how much carbon monoxide (CO) is formed?
How are protons and neutrons different?
Suppose a neutral atom were to lose an electron. What would happen to the atom
Potassium has an atomic number of 19 and a mass number of 39. How many neutrons are in the nucleus of a typical potassium atom?
A molecule is...
When it rains, the combination of water and soil creates mud. Since the water and soil do not chemically combine, mud is considered to be
A student observed a chemical reaction in which the mass of the products was measured to be less than the mass of the reactants. How can this be explained?
In which state of matter would the molecules be farthest apart?
The first part of a balanced equation is shown Cu+ 2AgNO3 ---> _________. In order for this equation to be balanced, how many oxygen atoms must be present in the products?
Which statement correctly describes how matter is conserved in a Chemical Reaction?
Students make lists of characteristics that describe an isotope of carbon (C). Which list is correct?
Which statement best classifies air?
One of the components contained in gasoline is octane C8H18 . Which ()
statement best describes C8H18?