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Some elements are unlikely to lose or gain electrons, but share electrons to form covalent bonds. Which of the following elements is most likely to form covalent bonds?
10
passed straight through the foil
heterogeneous mixture
less dense than the water
three
atoms are close together
molecules
silicon (#14)
A cork is able to float on water because it is ____________.
10
passed straight through the foil
heterogeneous mixture
less dense than the water
three
atoms are close together
molecules
silicon (#14)
Which of the following conditions would likely cause the activation energy to be high?
10
passed straight through the foil
heterogeneous mixture
less dense than the water
three
atoms are close together
molecules
silicon (#14)
How many atoms of calcium are in a unit of calcium phosphate whose formula is Ca3(PO4)2
10
passed straight through the foil
heterogeneous mixture
less dense than the water
three
atoms are close together
molecules
silicon (#14)
Vegetable soup is an example of a _______________.
10
passed straight through the foil
heterogeneous mixture
less dense than the water
three
atoms are close together
molecules
silicon (#14)
When Rutherford performed his metal foil experiment, he was surprised that most of the alpha particles ____________.
10
passed straight through the foil
heterogeneous mixture
less dense than the water
three
atoms are close together
molecules
silicon (#14)
What is the name given to the units that make up covalently bonded compounds?
10
passed straight through the foil
heterogeneous mixture
less dense than the water
three
atoms are close together
molecules
silicon (#14)
SI units are useful because they are all related by multiples of
10
passed straight through the foil
heterogeneous mixture
less dense than the water
three
atoms are close together
molecules
silicon (#14)
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