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PLEASE HELP what is the atomic mass of a hydrogen with a negative charge of one and a relative abundance of 99.0% ?
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In the following redox reaction which is the oxidizing agent and which is the reducing agent? alcl3 + na nacl + al
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Which set of characteristics best describes igneous rock? a) largest type of rock, made of organic matter, hardest type of rock b) least abundant type of rock, made of other rocks, made mostly of minerals c) found on all continents, contains wavy bands of stripes, contains fossils d) most abundant type in earth's crust, made of magma/lava, contains no fossils
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