a-by measuring its mass
1). how can the position of a particle be determined?
a-by measuring its mass
b-by determining its charge
c-by analyzing its interactions with another particle
d-by measuring its velocity
2). what is the mass number for an oxygen atom that has 10 neutrons in its nucleus?
a-16
b-8
c-18
d-10
3). what determines different shapes of an orbital?
a-speed
b-velocity
c-energy sub-level
d-all of the above
Answers: 3
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Acompound has a molar mass of 92.02 grams/mole, and its percent composition is 30.4% nitrogen (n) and 69.6% oxygen (o). what is its molecular formula? a. n2o4 b. no2 c. n2o d. n4o2
Answers: 1
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Describe what happens to the molecules as water goes from ice to liquid to vapor. be sure to explain what happens to the temperature during the phase changes.
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The sum of the oxidation numbers in a neutral compound is always
Answers: 2
1). how can the position of a particle be determined?
a-by measuring its mass
a-by measuring its mass
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