Ionic bonds in ionic compounds result in a crystal lattice structure that prevents free movement of ions, making solid ionic compounds poor conductors of electricity. However, dissolved or melted ionic compounds can conduct electricity. Additionally, these strong bonds lead to high melting and boiling points for ionic compounds.
Ionic bonds greatly affect the properties of ionic compounds. Ionic bonds are formed when one atom donates an electron to another, resulting in charged ions that attract each other. Option C) and D) are both partly correct. Ionic bonds lock these ions in a crystal lattice structure which prevents free movement. This makes solid ionic compounds poor conductors of electricity. However, if these compounds are dissolved in water or melted (thus allowing ions to move freely), they can conduct electricity.
Moreover, ionic bonds are strong. As a result, it requires a lot of energy to break these bonds, leading to high melting and boiling points for ionic compounds, which eliminates options A) and B).
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Bromine can be classified as a pure substance.
Why?
Bromine is an element with atomic number 35 on group 17 of the Periodic Table. That's the first sign that shows us that it is a pure substance.
But the fact that it has a clear and defined boiling and melting point is a sign that we are in the presence of a pure substance. Pure substances are characterized by defined boiling and melting points.
Mixtures usually have a range of temperatures in which they melt and boil.
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Answer:
engineering
Explanation:
when you think about the advancements in engineering over the years vs the advancements in science, engineering fits the "fast, better, cheaper" a lot more. Cars, for example, are engineered and over the years cars have been getting faster, more reliable/safe, and more affordable.
Science can also be focused on being better/more reliable/efficient, but this is mainly for things like medicine, and not science as a whole. How can "faster, better, cheaper" apply to a biologist, who studies nature?
b. 3KCl + HNO3 - > 3HCl + KNO3
c. 2Be + O2 - > 2BeO
d. Mg + O2 - > MgO2
this question two answers which is C and D they are balanced to the right tab.
Answer:
If you change the number of protons an atom has, it becomes a different element. If you change the number of nutrons it has, it becomes a different isotope.
Explanation:
b. I
c. N
d. O
e. C