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Structural formulae are usually used to describe covalent molecular compounds. It is illogical to use structural formulae to describe ionic compounds because ionic compounds are typically lattice structures. This means that they are electrostatically fixed to one another, and what would normally be considered molecules run together as ions bond to multiple other ions.
For example, NaCl would not look like:
Na+-Cl-
But rather-
(Na+)-(Cl-)-(Na+)-(Cl-)- (etc.)
(Cl-)-(Na+)-(Cl-)- (Na+)-etc
(Na+)-(Cl-)-(Na+)-(Cl-)- (etc.)
etc.- etc- etc- etc
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What are hard substances?
The substances that are hard and which cannot be scratched is known as hard substances
Substances that cannot be broken down into other substances are called?
elements
Why some substances are biodegradable and other are not?
Biodegrable are the substances that are coumsumed by decomposers.. non biodegrable substances are cannot be consubed by decomposers...
If an unknown substance CANNOT be broken down into simpler substances it is?
If an unknown substance cannot be broken down into simpler substances it is made of one kind of atom and an element.
Substance that cannot be changed into simpler substances by chemical means?
Elements cannot be changed into simpler substances by chemical means. To change them into simpler particles, you need nuclear means.
Why does a mixture cannot be represented by a chemical formula?
Because mixtures are special types of substances that cannot be changed. The formulas are something that make something up.
Substances that cannot be broken down chemically into substances are?
Elements.
What is the name for a substance cannot be separated into simpler substances?
An element cannot be separated into simpler substances by chemical means.
Substances that cannot be broken down by chemical mean?
Substances that cannot be chemically broken down into simpler substances are called elements.
What are hard substances?
The substances that are hard and which cannot be scratched is known as hard substances
Substances that cannot be broken down into other substances are called?
elements
What substances cannot be broken down into any other substances by physical or chemical means?
All substances can be broken into any other substances (or elements) by chemical or physical methods.
Why some substances are biodegradable and other are not?
Biodegrable are the substances that are coumsumed by decomposers.. non biodegrable substances are cannot be consubed by decomposers...
Are compounds the simplest type of substances and cannot be broken down into any other substances?
No: Compounds are simple mixtures of substances
What is a pure substance that cannot be broken down into similar substances?
An element is a pure substance that cannot be broken down into simpler substances by chemical means.
What are What is elements?
Br
How do you explain the phrase like dissolves like in terms of polar and nonpolar substances?
Polar substances dissolve other polar substances, and nonpolar substances dissolve other nonpolar substances. A polar substance cannot dissolve a polar substance and a nonpolar substance cannot dissolve a polar substance.
