Answer:
sulfite ion SO32
Explanation:
A molecular ion is a covalently bonded set of two or more atoms, or of a metal complex, that can be considered to behave as a single unit and that has a net charge that is not zero.
The boiling point of oxygen is higher than nitrogen's boiling
The reason the boiling point of O2 is higher is not because of increased van der Waals interactions, but simple physics. The mass of a molecule of O2 is greater than that of a molecule of N2, so the molecule of O2 traveling at a speed sufficient to break out of the liquid phase has a greater kinetic energy than an analogous N2 molecule.
The net effect is that more energy must be distributed throughout a sample of O2 to achieve a given vapor pressure (in this case equal to atmospheric pressure) than for a sample of N2. More energy means greater temperature.
Answer:
See below!
Explanation:
Solids have a definite mass, a definite shape, and a definite volume. They are not compressible and are the most tightly packed together.
Liquids have definite mass and definite volume. Liquids take up the shape of the container and are not compressible. They are slightly packed together but are allowed to move freely.
Pure substances that cannot be broken down into other substances by any chemical or physical means are known as element.
Pure substances that can be broken down into elements by any chemical or physical means are known as compounds.
Combination of pure substances in which they retain their properties is known as mixture.
Mixtures in which the components of mixture are uniformly distributed are known as homogeneous mixture whereas mixtures in which its components are can be easily seen are known as heterogeneous mixture.
Since propane, 
is made up of two different elements that is carbon, 
and hydrogen, 
. There are 3 carbon and 8 hydrogen atoms present in the propane molecule.
So, it is a compound.
Answer:
a martin year is as twice as long
Explanation:
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