Which of the following chemical reactions shows combustion?
A) Fe+2 + H2O FeO + H2(g)
B) HCl + NaOH NaCl + H2O
C) CH4 + 2O2 .CO2 + 2H2O
D) Pb + PbO2 + 2H2SO4 2PbSO4 + 2H2O.
E) CaO + 2HCl CaCl2 + H2O
Correct Answer:
Verified
Q2: Which makes the best electrical conductor?
A) covalent
Q3: Freezing and boiling are examples of
A) processes
Q4: Metallic bonds create materials with properties that
Q5: Chemical bonds are
A) the attraction among atoms
Q6: Which of the following common household products
Q8: The electrons at the outer level of
Q9: Most polymers are characterized as
A) permanently stable
Q10: In which of the following places is
Q11: A piece of gravel by the side
Q12: Sodium chloride (NaCl) atoms form a crystal
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