Answer:
10
Step-by-step explanation:
Here is why.
The angle going down is 10 meters long.
Therefore it would be ten.
Any questions?
25% means 1/4, as 25/100 is simplified into 1/4.
Multiply 18 by 4 to get your missing number.
18 x 4 = 72.
72 is your missing number.
40x8=320
That’s all I can answer I’m not really sure I understand the rest of the question
In the balanced reaction
2 Fe + O₂ → 2 FeO
2 moles of iron (Fe) react with 1 mole of molecular oxygen (O₂) to produce 2 moles of iron oxide (FeO). The ratio of Fe to FeO is 1-to-1, so if one starts with 42.4 mol of Fe, one will end up with the same amount of FeO, 42.4 mol.
Look up the molar mass of Fe and O:
• Fe = 55.845 g/mol
• O = 15.999 g/mol
Then the molar mass of FeO is approximately 71.835 g/mol, and so the mass of 42.4 mol of FeO is
(42.4 mol) × (71.835 g/mol) ≈ 3050 g
Answer:
-2y +2
Step-by-step explanation:
(x-y+1) - (x+y+-1)
Distribute the minus sign
x-y+1 -x-y+1
Combine like terms
-2y +2