Answer:
5.Hey Order of reaction is :-
Y>Z>X
6.Phosphorus is soft, waxy and reactive. It reacts with moist air and gives out light. It ignites spontaneously at about 350C and that's why it is stored under kerosene to prevent its reaction in the atmosphere.
it can be also stored in sealed bottles..
Explanation:
mark me as brainliest ❤️
The answer is D you correct
You did not provide the statement, however, the most accurate things about atoms is that everything is made out of them in the entire universe, and they consist of protons, electrons, and neutrons. They create all substances in existence.
![m=m_{0}*(\frac{1}{2})^{\frac{60}{30}}\\\\ m=m_{0}*(\frac{1}{2})^{2}\\\\ m=\frac{1}{4}m_{0}](https://tex.z-dn.net/?f=m%3Dm_%7B0%7D%2A%28%5Cfrac%7B1%7D%7B2%7D%29%5E%7B%5Cfrac%7B60%7D%7B30%7D%7D%5C%5C%5C%5C%0Am%3Dm_%7B0%7D%2A%28%5Cfrac%7B1%7D%7B2%7D%29%5E%7B2%7D%5C%5C%5C%5C%0Am%3D%5Cfrac%7B1%7D%7B4%7Dm_%7B0%7D)
If the half-life of a sample of a radioactive substance is 30 seconds, how much would be left after 60 seconds? <span>
A. one-fourth</span>
Answer:
![\frac{p_1 V_1}{T_1}=\frac{p_2 V_2}{T_2}](https://tex.z-dn.net/?f=%5Cfrac%7Bp_1%20V_1%7D%7BT_1%7D%3D%5Cfrac%7Bp_2%20V_2%7D%7BT_2%7D)
Explanation:
The equation of state (combined gas law) for an ideal gas states that
![pV=nRT](https://tex.z-dn.net/?f=pV%3DnRT)
where
p is the gas pressure
V is the volume of the gas
n is the number of moles of the gas
R is the gas constant
T is the absolute temperature of the gas
The equation can be rewritten as
![\frac{pV}{T}=nR](https://tex.z-dn.net/?f=%5Cfrac%7BpV%7D%7BT%7D%3DnR)
For an ideal gas that undergoes a transformation, if the amount of gas remains the same, the term on the right of the equation remains constant. This means that the ratio
![\frac{pV}{T}](https://tex.z-dn.net/?f=%5Cfrac%7BpV%7D%7BT%7D)
for the gas remains constant, and therefore we can rewrite the equation as
![\frac{p_1 V_1}{T_1}=\frac{p_2 V_2}{T_2}](https://tex.z-dn.net/?f=%5Cfrac%7Bp_1%20V_1%7D%7BT_1%7D%3D%5Cfrac%7Bp_2%20V_2%7D%7BT_2%7D)
where 1 indicates the initial conditions of the gas while 2 indicates the conditions of the gas after the transformation.