Answers by Mohamed Lahsoumi
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Answers by Mohamed Lahsoumi

Answers by Mohamed Lahsoumi
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1. Why do all atoms of an element have the same atomic number, although they may have different mass numbers? 2. What do we call atoms of the same element with different mass numbers? 3. Explain the meaning
answered Aug 9, 2017
4 votes
61.7k views
How many times does 7 go into 181
answered Apr 24, 2017
4 votes
90.5k views
Help... You have received a letter from your English-speaking pen-friend John who writes: I have bought, a magazine. There is an interesting horoscope. I sometimes read it. How often do you read a horoscope?
answered Oct 19, 2016
3 votes
119k views
Diameter of a salad plate: 8 in
answered Feb 10, 2016
4 votes
23.5k views
Compared to a normal body cell, a normal egg cell contains (1) the same number of chromosomes (2) half the number of chromosomes (3) twice the number of chromosomes (4) four times the number of chromosomes
answered Jan 27, 2016
4 votes
89.3k views
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