Answer:
<h2>0.87 atm </h2>
Explanation:
The new pressure can be found by using the formula for Boyle's law which is
Since we are finding the new pressure
From the question
2.47 L = 2470 mL
We have
We have the final answer as
<h3>0.87 atm</h3>
Hope this helps you
Answer:
Silicon
Explanation:
The total of electrons: 2 + 2 + 6 + 2 + 2
In neutral state: #electrons = #protons = 14
so element with atomic number of 14 is silicon
Adding hot cocoa to hot water would be a chemical change
Explanation:
Atomic size is defined as the distance between the nucleus and valence shell of an atom. Valence shell is the outermost shell of an atom.
When we move across a period in a periodic table then there will occur a decrease in atomic size of the atoms. But when we move across a group in a periodic table then there will occur an increase in atomic size of the atom.
Hydrogen is a period 1 element, oxygen is a period 2 element, chlorine is a period 3 element and bromine is a period 4 element.
Therefore, given elements are arranged in order of increasing atomic size as follows.
H < O < Cl < Br
