When compounds containing carbon and hydrogen are burned in air, the products are usually carbon dioxide and water.
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Q8: The reaction 2 Mg + O2
Q9: When balancing a chemical equation, you need
Q10: When balancing a chemical equation, the number
Q11: What is the number of oxygen atoms
Q12: Consider the chemical equation:
Q14: What is the empirical formula of C4H8?
A)CH
B)CH2
C)C4H8
D)C2H4
Q15: A chemical reaction is balanced by changing
Q16: Chemists effectively count atoms by weighing matter.
Q17: Substances that lose electrons in reactions are
Q18: The empirical formula gives the actual number
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