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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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Suppose the universe were completely empty except for one object-a solid sphere moving through space of 100 km/s. what sort of path would the object be moving in? explain your answer
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What is calcium oxide+diphosphorus pentoxide--> calcium phosphate balanced
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What is matter? a. anything that has mass and takes up space b. something that has volume and takes up space. c. things that have energy and take up space d. things that take up space but don't have mass
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The primary cause of continental drift, earthquakes, and volcanic eruptions is?
A. the rotation of...
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