Answer:
Water is a polar molecule
Explanation:
The general solubility rule is that like dissolves like. In short, polar solutes would dissolve in polar solvents. Non polar solutes also dissolves on non polar solvents.
NaCl is an ionic molecule which forms as a result of transfer of electrons from one atom to another. The transfer of electrons makes the atoms oppositely a charged ions and they become polar.
Water is made up of Hydrogen H⁺ ions and hydroxy ions OH⁻. Water is an heteronuclear covalent molecule. Here, there is an unequal sharing of electrons as one atom pulls the shared electron more closer. This leaves a partial negative charge on the more electronegative atom and a partial positive charge on the other.
This polar nature of water NaCl makes dissolution easy.
Answer:
From the formular of magnetic force:
• F » magnetic force, B » magnetic flux density, I » current, l » length [ assume l = 1 m ]
Answer:
c) transfer of electrons
Explanation:
An ionic bond forms between a metal and non-metal. Elements aim to become stable by achieving a full octet (a full 8 electrons in their outer valence shell). Metals, almost always from the left side of the periodic table, are less electronegative, meaning they have a weaker hold on their electrons. When combined with a non-metal, from the right side of the periodic table and with a higher electronegativity, metals give up their electrons, fulfilling the outer valence shell of the non metal. Metals, after giving up all of their outermost electrons, reduce by one valence level, and thus also achieve a full octet. Both elements are satisfied in an ionic bond after a transfer of electrons. A sharing of electrons does not occur in ionic bonds (molecular bonds only!), because that entails both elements (usually both non-metals when sharing) using one more electrons simultaneously.
length= metre
mass= kg
time= second
temperature = kelvin
current= ampere
luminous intensity= candela
Amount of substance = mole
etc
I hope this will help you
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