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15
×
An atom with 3 valence electrons will most likely ________
lost five electrons.
gain five electrons.
gain three electrons.
lose three electrons.
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banana
Go to last place!
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fairy
Take points!
5
10
15
20
25
×
shark
Other team loses 20 points!
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×
lifesaver
Give 25 points!
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15
×
How many calories are released when 500 g of water cools from 95.0°C to 25.0°C?
1.25 Ã 10^4 cal
70.0 cal
4.75 Ã 10^4 cal
3.50 Ã 10^4 cal
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15
×
What is the formula of a compound formed by the ions M^2+ and X^3-?
M3X2
M2X
M2X3
MX3
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15
×
Another name for atomic mass unit (amu) is the _______
dalton.
kekule.
mendeleev.
avogadro.
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15
×
For the isotope 71Ga, Z = __ and A =__.
31; 40
71; 40
31; 71
71; 31
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15
×
The smallest amount of an element that retains that element's characteristics is the _____
atom.
proton.
electron.
molecule.
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monster
Reset all scores!
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seesaw
Swap points!
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rocket
Go to first place!
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baam
Lose 15 points!
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15
×
What temperature is -10°C on the Fahrenheit scale?
26°F
263°F
-18°F
14°F
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15
×
Which choice best describes the degree of uncertainty in the measurement 4.0032 g?
The measurement is between 4.0031 and 4.0033 g.
The measurement is between 3.99 and 4.01 g.
The quantity is exact.
The measurement is between 4.002 and 4.004 g.
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