Answer:
-753kJ of energy are involved
Explanation:
Based on the reaction:
Fe₂O₃(s) + 2 Al(s) → Al₂O₃(s) + 2 Fe(s) ΔH°rxn = -852 kJ
<em>When 2 moles of Fe are produced, there are released -852kJ.</em>
<em />
98.7g of Fe are:
98.7g Fe × (1mol / 55.845g) = 1.767 moles of Fe
If 2 moles of Fe are producen when -852 kJ of energy are involved, 1.767 moles of Fe envolved:
1.767mol × (-852kJ / 2mol Fe) = <em>-753kJ of energy are involved</em>
I found the complete question:
Which statement about schrodingers theory of the atomic model is true?
A. it proved that the nucleus of an atom is positively charged.
B. it was the first theory to discuss the existence of electrons.
C. it explained the odds of finding the position of an electron.
D. it assumed the electron cloud to be heavier than the nucleus.
Answer:
C. it explained the odds of finding the position of an electron.
Explanation:
Erwin Schrodinger formulated the wave equation of electrons. His wave equation highlighted the probability of where an electron can be found or located in an energy level.
The region of maximum probability of where an electron is located is referred to as an electron cloud or an orbital.
Answer:
Explanation: the kenetic energy of the molecules has increased. please mark me the brainliest
Honestly, you can look at the notes you took and even look down some things in google to help u solve ur answer
<span>Correct answer is:
But how to get there?
Let's start with simple explanation of what exactly is cellular respiration.
Cellular respiration is a multistage biochemical oxidation process of organic substances when prime product is energy (ATP - adenosine triphosphate) and other are released waste products. Cellular respiration takes place even if other metabolic processes are stopped, but cellular respiration may differ in particular organism groups.Some reactions during whole process of cellular respiration are similar in all types of living organisms.
Cellular respiration is prime indication of declining living processes.Only viruses which are on the edge of living organism and chemical particle are not performing cellular respiration.But to the point :P
In cellular respiration all substrates which are in the cell might be organic, but mostly we are using sugar oxidation - glucose in the presence of oxygen. Chemical formula of sugar looks like this:
Oxygen is just
so for now we have just part of the equation:
But what would be on the right hand side?
It's quite simple, remember equation of full combustion? If we want to burn something we need oxygen like in the equation, so the product of this equation would be carbon dioxide, water and of course energy (ATP).Carbon dioxide formula looks like this:
As a reminder water formula:
Full formula would look like that:
But still as you see this equation is unbalanced, after balancing it would like that:
At the end I would like to explain one more thing. Energy which has been released during this process is part of high-energy connection which might be used to perform chemical reactions in the cell or to move organism for example in muscles. We need to remember that production of ATP is not happening with 100% efficiency and part of this energy is released as heat.</span>