the mass of the shells will remain the same because you can not change mass even if you were to leave this planet and go to the moon your weight would change but your mass remains the same
Answer:
Mass of HCl = 73 g
Explanation:
Given data:
Mass of hydrogen = 2 g
Mass of HCl = ?
Solution:
First of all we will write the balance chemical equation:
H₂ + Cl₂ → 2HCl
Number of moles of hydrogen = 2 g/ 2g/mol
Number of moles of hydrogen = 1 mol
Form balanced chemical equation compare the moles hydrogen with HCl.
H₂ : HCl
1 : 2
Mass of HCl:
Mass of HCl = number of moles × molar mass
Mass of HCl = 2 mol × 36.5 g/mol
Mass of HCl = 73 g
Answer:
A
Explanation:
Hot air is less dense therefore it rises. Cold air is more closely packed therefore it is more dense. Less dense things rise while more dense things sink.
neither created nor destroyed in chemical reactions. In other words, themass of any one element at the beginning of a reaction will equal the mass<span> of that element at the end of the reaction.</span>
There are only two possible structures for an octahedral
molecule with a formula of ax4y2. One is when the two y’s are next to each
other and the other one is when the two y’s are of the opposite side of the molecule.
Different structures can be drawn but only two types of molecule can be formed.
