Answer:
Explanation:
1. Atomic mass of K
To get the atomic mass of K, you calculate the weighted average of the isotopic masses.
That is, you multiply the atomic mass of each isotope by a number representing its relative importance (e.g., its percent of the total).
Set up a table for easy calculation:
2. Formula mass of KF
Answer:
in the presence of water, a strong acid will dissociate quickly and release heat, so it is an exothermic reaction.
Explanation:
3-hexene shows geometrical isomers .
The geometrical isomers of 3-hexene are cis-3-hexene and trans-3-hexene.
Trans isomer has a higher melting point than cis isomer . the cis isomer has high boiling point . dipole moment is low in case of trans and high in case of cis .
<h3>What is isomerism ?</h3>
it is a type of phenomena in which two or more compounds have same molecular or chemical formula but have different structure or spatial arrangement in 3D space .
<h3>Isomers :</h3>
same molecular formula but different physical or chemical properties .
<h3>What is geometrical isomers ?</h3>
it is a type of stereoisomers which have same molecular formula and same structure but different arrangement of atoms in space .
Learn more about geometrical isomerism here :
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Answer:
The given equation is Balanced.
Explanation:
AlBr₃ + 3K → 3KBr + Al
The balanced equation consist of equal number of atoms of elements in reactant and product side.
The given equation is balanced because one aluminium, three bromine and three potassium atoms are present on both side of equation.