A) 7.110 x 10^2
B) 2.39 x 10^-1
C) 9.0743 x 10^4
D) 1.342 x 10^2
E) 5.499 x 10^-2
F) 1.00000 x 10^4
G) 7.38592 x 10^-7
The answer should be the first one, cells are made of living things. Which is false, because living things do not make up cells, cells make up living things.
I cant really help you but here is a few articles that may help you.
http://www.icr.org/article/do-bacteria-evolve-resistance-antibiotics/
https://www.ncbi.nlm.nih.gov/books/NBK45713/
http://www.windows2universe.org/cool_stuff/tour_evolution_9.html
http://evolution.berkeley.edu/evolibrary/news/080401_mrsa
http://evolution.berkeley.edu/evolibrary/article/_0/evoscales_03
Copper reacts with Nitrogen to produce Copper Nitride
6 Cu + N₂ → 2 Cu₃N
At S.T.P
22.4 L (1mole) of N₂ reacts with = 381.24 g of Cu to produce Cu₃N
So,
33.9 L of N₂ will react with = X g of Cu
Solving for X,
X = (33.9 L × 381.24 g) ÷ 22.4 L
X = 576.96 g of Cu
As,
Moles = Mass / M.mass
Moles = 576.96 g / 63.54 g/mol
Moles = 9.08 moles of Cu
Result:
So, 33.9 L of N₂ will react with 576.96 g (9.08 moles) of Cu.
Number of moles = mass / molar mass
number of moles of H2 = (<span>6.96×10−4) / (2)(1) = 3.48*10^-4 moles
</span>The equation that describes the formulation of NH3 is:
N2 + 3H2 .......> 2NH3
From the balanced chemical equation, we can see that:
3 moles of H2 produces 2 moles of NH3
Based on this, to know the number of moles of NH3 produced from 3.48*10^-4 moles of hydrogen, we will do cross multiplication as follows:
number of moles = (3.48*10^-4*2) / (3) = 2.32*10^-4 moles
Now, one mole of any element contains Avogadro's number of molecules. Therefore, number of molecules in 2.32*10^-4 moles can be calculated as follows:
number of molecules = 2.32 * 10^-4 * 6.022 * 10^23 = 1.397 * 10^20 molecules