Answer:
Exotérmica.
Explanation:
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En este caso, dado que la mayoría de reacciones de combustión son exotérmicas, al generar calor en los productos, es posible inferir que esta reacción, referida a la combustion de metano es exotérmica debido a lo anteriormente mencionado, ya que el término de energía de reacción, 531 kcal, está al lado de los productos, lo que quiere decir que es energía generada.
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The cell divides to get 2 new cells. If you may have learned, sex cells can only divide four times. in a female egg cell, only one cell out of those can make a kid. In a male, all four cells are ready to make babies.
Hope this helps :)
Answer:
b. A mole of chlorine gas contains 2 (6.02 * 10^23 ) atoms.
c. A mole of carbon dioxide contains two moles of oxygen molecules (CO2)
e. A mole consists of the number of particles in exactly 12g of naturally occurring carbon.
Explanation:
A mole of oxygen gas (O2) contains 2 (6.02 * 10^23) atoms
A mole of Ammonia gas (NH3) has a mass of 17.031g/mol
A mole is defined as the unit used in measurement of the amount of substances in the International System of Units.
A mole was initially defined as the number of particles in exactly 12g of naturally occurring carbon.
Therefore, options b, c and e are correct
USING BOYLE'S LAW PRESSURE BECOMES 4 TIMES WHEN GAS IS COMPRESSED WITHOUT TEMPERATURE CHANGE.
Explanation:
In a container having 4L there are bunch of molecules bouncing around walls and this movement of molecules indicates pressure in the container.
Logically to see when the gas is compressed from 4L to 1L it shows the increased amount of pressure over the container as the number of gas molecules increased and the collisions also increase as the container is same and pressure increases.
Use the equation:
(P1 * V1) / T1 = (P2 * V2) / T2
now cross-multiplying to get
P1 * V1 * T2 = P2 * V2 * T1
Replace V1 with 4L and V2 with 1L. Also, Temperature remains constant, so taking it out of the equation
P1 * 4L = P2 * 1L
Divide both sides by 1L:
P1 * 4 = P2
So the end pressure will be 4 times the beginning pressure.
Answer:
diffusion, higher , and Lower.
Explanation:
Within systemic capillaries, substances such as oxygen, hormones, and nutrients move by diffusion from their relatively higher concentration in the blood into the interstitial fluid and then into the tissue cells, where the concentration of these materials is lower.
We now that diffusion is process of movement of solute molecules from a region of higher concentration to region of lower concentration. That is against the concentration gradient.
