The following types of bonds exists between the listed atoms;
- Si and O - polar covalent
- O and O - Covalent
- C and H - Covalent
- Li and F - ionic
- Ba and S - ionic
<h3>What is a polar covalent bonds?</h3>
A bond is polar covalent when the electronegativity difference between the bonding atoms is above that found in a nonpolar covalent bond. Now we shall see the types of bonds between these atoms.
- Si and O - polar covalent
- O and O - Covalent
- C and H - Covalent
- Li and F - ionic
- Ba and S - ionic
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Percent error is an expression that is used as a tool for determining the precision of your calculations. It is calculated by the absolute value of the difference of experimental and theoretical values over the theoretical values multiplied by 100%. Hope this helps.
If only an element’s atomic number and weight are provided, the number of protons, electrons and neutrons can also be determined.
<h3>What is atomic number?</h3>
The atomic number of an element is the number of protons in an atom while the mass number is the sum of the atomic number and the number of neutrons.
An atom has three subatomic particles namely;
The number of protons of an element is the atomic number of that element.
This means that if only an element’s atomic number and weight are provided, the number of protons, electrons and neutrons can also be determined.
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Answer:
The density is 10.25 
Explanation:
From the question we are given that the lattice spacing nm
V =
× 
= 0.1628 
zinc blende lattice has 4 atom per unit cell.
This means that 4 atoms is contained in 0.15056 
Density of the cubic unit in terms of atom is given as =
=26.565 
For plane (110) the spacing between the cubic unit in the crystal denoted by
is given as =
Where a is the lattic spacing = 0.546
=
= 0.376 nm
The density of the lattice in (110) plane =26.565
× 0.386 nm
= 10.25 
Answer:
Copper turns green on exposure to air
Explanation:
Liquid water freezes to form ice: Physical change
Reason: Water can melt back when it becomes ice.
Copper turns green on exposure to air: Chemical change
Reason: The copper can not change back from the green state when it turns green.