Ok so, it all comes down to basically how nice the teachers are? Go to them and ask them personally if they'd take any late work or makeup work. Also ask (but in a very kiss butt way) if there was any chance theyd be willing to give you extra credit. The key to doing this is like basically just begging them and being super apologetic. Be fake and see if it gets you anywhere?
Answer:
To balance the reaction, we should put a 4 in front of Al
Explanation:
<u>Step 1:</u> Data given
AI+3O2->2AI2O3
<u>Step 2:</u> Balance the equation
On the right side we have 2*3 = 6 oxygen atoms
On the left side we have 3*2 = 6 oxygen atoms as well, so those are on both side balanced
On the right side we have 2*2 = 4 Al atoms
On the left side we have only 1 Al atom
We should multiply this by 4 (place a 4 in front of the Al)
4AI + 3O2 → 2AI2O3
Now al atoms are balanced on both sides.
Answer:
2 HgO → 2 Hg + O₂
(2 x 216.59 g) → gives → (2 x 200.59 g)
433.18 g → gives → 401.18 g
8.74 g → gives → ? g
by cross multiplication:
Theoretical yield = (401.18 x 8.74) / 433.18 = 8.094 g
% yield = (actual yield / theoretical yield) * 100
= (6.42 / 8.09) * 100 = 79.3 %
Explanation:
Food chains always begin with the sun but the organism that it starts with is a plant typically grass. Plants are fuel for consumers
