I think it’s D hope that helped
The answer is A, underground
Answer:
D. 9.
Step-by-step explanation:
One formula unit of NaOH contains <em>three atoms</em>: 1 Na, 1 O, and 1 H.
3 formula units × (3 atoms/1 formula unit) = 9 atoms
The answer to question 8 is
Ethanol's Molar Heat of Combustion. ... Heats of combustion are quoted as positive numbers while the enthalpy changes of combustion reactions (ΔH) are quoted as negative numbers, as combustion reactions are always exothermic. Heats of combustion are typically stated in kilojoules per mole (kJ/mol. or kJ mol. -1).
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