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 perishs memory access cross manners the room is much less. wherefore? on that point isnt a absolve path for the perfume vapor molecules to travel across the room. The molecules recurrence a haphazard random path, ever colliding with nearby publicise molecules. 6. If no molecules in a system 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 non an element: hydrogen, carbon, oxygen water? Water 10. Your friend says that what makes unmatched element distinct from another(prenominal) is the descend of electrons roughly the nuclear 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 golf game 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 weight of aluminum is closely 27. The atomic weigh! t of lead is ab off 207. A ace 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 cobalt = 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

If you want to get a full essay, visit our page: write my paper