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This type of pure substance contains more than one type of element chemically bonded
A. Compounds
B. Heterogeneous mixture
C. Homogeneous mixture
D. Elements
Answers: 3
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The identities of substances are the same before and after which type of change
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Inside a flashbulb, oxygen surrounds a thin coil of magnesium. when the flashbulb is set off, a chemical reaction takes place in which magnesium combines with oxygen to form magnesium oxide. which of the chemical equations matches the reaction above? a. mg + o2 mgo2 + energy b. 2mg + o mg2o + energy c. 2mg + o2 2mgo + energy d. mg + o mgo + energy
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In science class richard learns that a substance has a boiling point of 230 fahrenheit his teacher ask him to convert this temperature to degrees celsius what is the boiling point of his substance in degrees celsius
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This type of pure substance contains more than one type of element chemically bonded
A. Compounds
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