Answer:
The reaction of one mole of oxygen (O2) releases 445 kJ of energy.
Explanation:
Firstly, the reaction is exothermic since the sign of enthalpy change ΔH is negative.
The balanced equation: CH₄(g) + 2O₂(g) → CO₂(g) + 2H₂O(l): ΔH = −890 kJ,
Shows that 1 mole of CH₄ react with 2 moles of oxygen and releases 890 kJ.
So, every choice says that absorb is wrong (choice 1& 3).
Choice no. 4 is wrong since it says that 2 moles of methane releases 890 kJ, because only one mole release this amount of energy.
So, the right choice is The reaction of one mole of oxygen (O2) releases 445 kJ of energy.
Answer:
NH3 + CO2 + H2O -> NH4HCO3
This equation is already balanced
Answer:
V1 / T1 = V2 / T2
V₁ = 420 mL
T₁ = 210 K
V₂ = ?
T₂ = 250 K
420 / 210 = V2 / 250
V2 = (420 / 210) x 250 = 500 mL
Explanation:
Answer:
fr thats why my friend group is mostly colored only, As someone who is mixed with black and Hispanic, Colored ppl whether your dark, light, brown, tan are targeted and made fun of bc the way we are lol and i dont see white ppl getting bullied bc oh someones mom or dad isnt in there life lol you must rlly be white if you think life is easy as someone of color. im not saying white ppl are bad, they just dont have to go through what the colored do
Explanation:
im not racist just dont associate with alot of whites bc they are either rude or i just dont want to be friends lol, not saying white ppl cant be nice but its rare bc they always turn to do sneaky stuff on you
Answer:infred radiation cuases cancer and eletromagnetic waaves is how the sun travels it heat then visibel light is the light the human can see ultravilight radiation takes for of heat
Explanation:
