Question

The question is in the picture. Please help me uwu

Answer 1

please help

Answer 2

ill help

Answer 3

tell me what you need

Answer 4

its in the picture

Answer 5

@darkknight @jhonyy9 @Vocaloid

Answer 6

@dude

Answer 7

@Ultrilliam

Answer 8

@Hero

Answer 9

@Shadow

Answer 10

@darkknight

Answer 11

@Eiwoh2

Answer 12

when you're choosing what mole ratios, you need to consider:

1. what the coefficients in the balanced equation are
2. what units you need to cancel out

for the first part of the question, we're starting with moles of aluminum. so we want "moles aluminum" to be in the denominator of our conversion factor. we want to get to moles of oxygen, so moles of oxygen should be in the numerator.

looking at the equation, 4 moles aluminum = 3 moles oxygen

so your mole ratio is 3 moles oxygen/4 moles aluminum

notice, how if you write it like this:

\[\frac{ x~moles~Al }{ }(\frac{ 3~moles~O_{2} }{ 4~moles~Al})\]
the moles Al cancels out and you're left with moles oxygen

can you try the second part of the question on your own, using this same idea?