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An atom of sodium-23 (atomic number = 11) has a positive charge of +1. give this information, how many electrons does it have? how many proteins and neutrons does this atom have
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Chemistry, 22.06.2019 19:00
Suppose that a certain fortunate person has a net worth of $71.0 billion ($7.10×1010). if her stock has a good year and gains $3.20 billion (3.20×109) in value, what is her new net worth?
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What happens after sound waves create vibrations in the ear?
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Chemistry, 23.06.2019 12:00
372 ml is the volume of aluminum, density is 2.70 g/ml what is the mass in grams
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How does force of friction move when compared to the movement of the object it is working upon?
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