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15
×
In which mixture can you see all of the parts?
heterogeneous
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15
×
What is the formula for copper(I) sulfate?
Cu2SO4
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15
×
What two types of atoms make a covalent bond?
2 nonmetals
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15
×
Is this a physical or a chemical change? sharpening a pencil
physical change
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×
boom
Lose 50 points!
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×
rocket
Go to first place!
Okay!
×
rocket
Go to first place!
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×
lifesaver
Give 10 points!
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15
×
Mention an element which is similar to Li
Na, K, Ru, Cs, Fr
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×
heart
Other team wins 25 points!
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×
shark
Other team loses 25 points!
Okay!
×
shark
Other team loses 25 points!
Okay!
×
baam
Lose 25 points!
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15
×
How are covalent bonds explained?
When the atom shares an electron with an another atom
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15
×
According to the octet rule most elements need _______ valence electrons.
8
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seesaw
Swap points!
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gold
Win 50 points!
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fairy
Take points!
5
10
15
20
25
×
lifesaver
Give 15 points!
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15
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What atom matches this electron configuration? [Xe] 6s^2 4f^14 5d^9
Gold
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15
×
When a nonmetal gains electrons, it becomes this type of ion.
Anion
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15
×
What is an Atom?
The smallest particle or piece of a pure substance.
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15
×
What region of the periodic table contains atoms that form covalent bonds?
the right side
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×
eraser
Reset score!
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gold
Win 50 points!
Okay!
×
rocket
Go to first place!
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×
baam
Lose 10 points!
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15
×
What is krypton? Element, Compound, Mixture
Element
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×
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