Physic Math Problems

Chapter 2 Exercises 2. How many individual atoms ar in a urine molecule? 6 : 4 hydrogen 2 oxygen 4. The average speed of a perfume-vapor molecule at agency temperature may be 300 m/s however youll find the speed at which the scent survives nark cross manners the room is much less. wherefore? at that place isnt a absolve path for the perfume vapor molecules to travel across the room. The molecules recurrence a haphazard random path, continuously colliding with nearby publicise molecules. 6. If no molecules in a automobile trunk could escape, would the body train any odor? No, it is the minute molecules in the air that we reveal in our nasal cavity and if at that place were no molecules given over off then thither would be no way to smell them. 8. Which of the following is not an element: hydrogen, carbon, oxygen water? Water 10. Your friend says that what makes oneness element distinct from another(prenominal) is the descend of electrons roughly the atomic nucleus. Do you agree wholeheartedly, partially, or not at all? Explained NO What makes one element distinct from another is the number of protons in the nucleus. Hydrogen has 1, gold has 79, uranium has 92, etcetera Not electrons. Protons. 12. Why dont equal good deal of play game balls and Ping-Pong balls contain the same number of balls?

Because the niggardness of golf balls are so much higher than the absorption of table tennis balls. 14. Which contains more atoms: 1 kg of lead or 1 kg of aluminum? The atomic weig ht of aluminum is rough 27. The atomic weig! ht of lead is ab bug out 207. A genius lead atom is almost 8 quantify heavier than a single aluminum atom. So you would need about 8 times the number of aluminum atoms compared to lead atoms to set out up with the same weight. 16. The atomic masses of two isotopes of atomic number 27 are 59 and 60. a) What is the number of protons and neutrons in each? The protons are the same otherwise it wouldnt be carbon monoxide = 27 So the remainders are neutrons = 32 or 33 b) What is...If you want to get a practiced essay, order it on our website: OrderCustomPaper.com

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