<h2>Answer:</h2>
a) Group 1
b) Yes, they are very reactive
c) They do not occur freely in nature
e) Soft
f) Francium and Caesium
g) They react explosively to produce hydrogen gas
<h2>Explanation:</h2>
Alkali metals are metals that belongs to Group 1. They are known to be very reactive due to its tendency to donate their lone electron to other element to attain their octet configuration.
Due to their reactive nature, they do not occur freely in nature unless when combined with other elements.
These group1 metals are known to be soft metals due to their low ionization energy. The two most reactive element in the group are Francium and caesium since reactivity of elements increases from top to bottom of the periodic table.
When these metals are exposed to water, they react explosively to produce hydrogen gas.
North was no longer willing to tolerate slavery as being part of the fabric of US society and that the political power brokers in Washington were planning to abolish slavery throughout the Union. Therefore for many people slavery is the key issue to explain the causes of the American Civil War. However, it is not as simple as this and slavery, while a major issue, was not the only issue that pushed American into the ‘Great American Tragedy’.
The decimal should be moved two places
Answer:
2.09 atm
Explanation:
We can solve this problem by using the equation of state for an ideal gas, which relates the pressure, the volume and the temperature of an ideal gas:
where
p is the pressure of the gas
V is its volume
n is the number of moles
R is the gas constant
T is the absolute temperature
In this problem we have:
n = 0.65 mol is the number of moles of the gas
V = 8.0 L is the final volume of the gas
is the temperature of the gas
is the gas constant
Solving for p, we find the final pressure of the gas:
