4C7H5N3O6 + 21O2 = 28CO2 + 10H2O + 6<span>N<span>2
</span></span><span>According to the reaction equation, it can be seen that TNT and O2 have following stoichiometric ratio:
</span><span>
n(</span>C7H5N3O6)<span> : n(O2) = 4 : 21
</span>n(O2) = 21/4 x n(C7H5N3O6) = 5.25 x n(C7H5N3O6)
n(C7H5N3O6) = m/M= <span>0.853/227 = 0.0038 mole
</span>
n(O2) = 5.25 x n(C7H5N3O6) = 5.25 x 0.0038 = 0.02 mole
m(O2) = n x M = 0.02 x 32 = 0.64 g = 640mg
<span>Remember amount is measured in moles. Also, since volume is one of the variables, that means the container holding the gas is flexible in some way and can expand or contract. If the amount of gas in a container is increased, the volume increases. If the amount of gas in a container is decreased, the volume decreases.
</span>
Before I get to the answer, I would recommend that you post biology questions under the biology category. You should get your answers more quickly that way :)
There are two things that happen before a parent cell divides:
1) DNA in the nucleus of the parent cell must replicate (this happens in the S phase of the cell cycle). If you're looking for a single answer to your question, then this is probably it.
2) Also, the cell must grow and some organelles (like the mitochondria) must also replicate before the parent cell divides. If organelles like the mitochondria did not replicate, then you would eventually end up with daughter cells that don't have enough mitochondria to support themselves.
According to sources, the most probable answer to this query is relationship among variables is explained. Direct proportionality means that variables are similar in terms of magnitude, whereas indirect is the opposite.
Thank you for your question. Please don't hesitate to ask in Brainly your queries.
Answer:
The answer is
<h2>7.80 g/mL</h2>
Explanation:
The density of a substance can be found by using the formula
<h3>
</h3>
From the question
mass of steel = 156 g
volume = 20 mL
The Density is
We have the final answer as
<h3>7.80 g/mL</h3>
Hope this helps you
