Answer:
Solution A, pOH=1.5
Explanation:
Answer:
6m
Explanation:
5.0 mols Li × 6.94 g Li/ 1 mol Li = 34.7 grams of Li
sig figs: 35 grams of Li
Since the hydrangeas are changing color depending on whether the soil is acidic or basic, they must have an indicator. This means that any hydrangea planted in acidic soil will have blue flowers and any hydrangea planted in basic soil will have pink. One common indicator present in many plants is anthocyanin, so maybe hydrangeas contain that chemical.
I think the soil has a lot to do with the reason why the flowers have different colors.
A soil is a mixture of organic matter that supports life. There are 4 types of soil which are sand, silt., clay and loam soil.
A hydrangea flower is affected by the acidity of the soil to influence the color it turns out to be.
The acidic property in the soil used to plant the flower turned it blue,
while The alkaline property in the soil turned the color pink.
Learn more about soil here:
Answer:
Mg²⁺ cation
Br⁻ anion
Explanation:
Magnesium is present in group two of periodic table.
It is alkaline earth metal.
It has two valance electrons.
Thus by losing two valance electrons it complete the octet. The common oxidation state of magnesium is +2.
The bromine is present in group seventeen.
It has seven valance electrons.
It is the member of halogen family.
To complete the octet bromine required one electron. By gaining the one electron it showed -1 oxidation state.
When bromine combine with magnesium both formed MgBr₂.
The one atom of Mg have +2 oxidation state while bromine have -1 that's why to make the overall compound neutral two bromine atoms combine with one atom of magnesium.