Molar mass N₂ = 28.0 g/mol
1 mole ------------- 28.0 g
5 moles ------------ ?
mass = 5 . 28.0 / 1
mass = 140 g
hope this helps!
Answer:
a or b
Explanation:
because those are the most likely to be true
now it gives you two options so i thinks it might be B but you could choose A you got two options choose wisely
Answer:
4 moles CO₂ = 4 moles O₂
Explanation:
The incorrect mole ratio is 4 moles CO₂ = 4 moles O₂.
Let us write the reaction equation:
2C₂H₅OH + 7O₂ → 4CO₂ + 6H₂O
To write mole ratios in a chemical reaction, we must ensure the equation is balanced.
Since the given expression is balanced,
Then 4 moles CO₂ = 4 moles O₂ is not correct;
Rather;
4 moles CO₂ = 7 moles O₂ is the right expression
Answer:
a boy pulling a toy train, the boy is
interacting with an object while applying a force to it,
another example of contact forces is friction.
Explanation:
A contact force is when two interacting
objects
(btw love your pfp)
Darwin used finches in his theory of evolution.
