The excretory system<span> is responsible for removing the </span>cellular waste through the lungs,skin,and kidneys<span>.
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Its 700 J! I just took the test so yeah.... :)
Isolated systems does not allow any matter or energy to be exchanged.
Answer:
it stands for Hazardous Household Products Symbols.
<span> 1C3H8(g) + 5 O2(g) → 3 CO2(g) + 4 H2O, the ∆H is –2200 kJ
1mol </span>C3H8(g) ---- –2200 kJ
2mol C3H8(g) ----2(–2200 kJ)=-4400kJ
