Answer:
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Answer:
yes that is the name for the formula is magnesium diiodide
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:
20.2 °C
Explanation:
When the pressure and number of moles are constant, Charles's law may be used to solve for temperature:
T₁/V₁ = T₂/V₂ >> T₂ = T₁ (V₂/V₁)
Expressions for the volumes can be substituted and simplified:
T₂ = T₁ (V₂/V₁) = T₁ (4/3πr₂³/4/3πr₁³) = T₁ (r₂³/r₁³)
Substituting in values in the equation (where the radius r is half of the diameter) gives:
T₂ = T₁ (r₂³/r₁³) = (19.0°C) x ((51.0cm/2)³/(50.0cm/2)³) = 20.2 °C
Because the compounds<span> that make up </span>air<span> e.g. oxygen (o2), Carbon dioxide (co2) and water is a compound because the composition of water is fixed, H2 and 02 react to form water. </span>