When an atom is netural the number of the ? and ? are the same
7th grade science...
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The semi-conductors on the periodic table are classified as
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Why is any chemical reaction always balanced? give reasons and explain the easiest way to solve the balancing problems in chemical equations with stoichiometric coefficients upto 20 as hit and trial doesn't always work. give full reasoning
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What are two radioactive isotopes that are used for dating rocks that are older than 10 million years
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