The formula of a compound is
Given:
The ions and
To find:
The formula for ions and
Solution:
The ion with a positive charge (cation) = nickel ion =
The ion with a negative charge (anion) = nitrate ion =
Valency on nickel ion = 2
Valency on nitrate ion = 1
Using the criss-cross method as shown in image
The formula of a compound :
The name of a compound is nickel(II) nitrate
The formula of a compound is
Learn more about ions here:
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Answer:
Compound: A substance that is made up of more than one type of atom bonded together.
Mixture: A combination of two or more elements or compounds which have not reacted to bond together; each part in the mixture retains its own properties.
Explanation:
The different substances in a mixture are not chemically combined, whereas the different elements in a compound are. The atoms do not combine in the mixture, but they combine when they form a compound.
CH3CH2OH fastest
CH3CH2CI fast
CH3CH2I slowest
i believe
None. Neon has two layers of electrons, both filled completely. This means that there cannot be unpaired electrons in this atom.
Answer:
10 million years
Explanation:
For a sample to decay to 25% of its original amount, 2 half lives must have passed. Since one half life is 5 million years, multiplying this by 2 gives us that 2 half lives is 10 million years.