Answer:
The rate constant of the reaction at 125˚ is 
.
Explanation:
The Arrhenius equation is a simple equation that describes the dependent relationship between temperature and the rate constant of a chemical reaction. The Arrhenius equation is written mathematically as
where 
is the rate constant, 
represents the activation energy of the chemical reaction, 
is the gas constant, 
is the temperature, and 
is the frequency factor.
The frequency factor, , is a constant that is derived experimentally and numerically that describes the frequency of molecular collisions and their orientation which varies slightly with temperature but this can be assumed to be constant across a small range of temperatures.
Consider that the rate constant be 
at an initial temperature 
and the rate constant 
at a final temperature 
, thus
Given that 
, 
, 
, 
, and 
, therefore,
Answer:
The most common elements, like carbon and nitrogen, are created in the cores of most stars, fused from lighter elements like hydrogen and helium. The heaviest elements, like iron, however, are only formed in the massive stars which end their lives in supernova explosions.
<h3>
Answer:</h3>
A saturated solution is a chemical solution containing the maximum concentration of a solute dissolved in the solvent.
<h3>
Explanation:</h3>
- A solution is made by dissolving a solute in a solvent.
- For example dissolving a salt in a solvent such as water results to a solution.
- Solution may either be saturated or unsaturated.
- Unsaturated solution is a solution that can dissolve more solute upon addition because it has not reached saturation.
- A saturated solution on the other hand is a solution that has maximum solute and the concentration of solute is maximum and thus the solvent can not dissolve any more solute.
- Therefore, a saturated solutions contain maximum concentration of a solute dissolved in the solute.
Answer:
2H3PO4 +3Ca(OH) 2 = Ca3 (PO4) 2 +6H20
Yes, anything that lives. Cells have a nucleus, they are alive and can reproduce. (Not man made/abiotic)
