Answer:
It's <em>HYDROXIDE</em><em> </em>
Explanation:
You do not call it as hydroxide <em>ion</em><em> </em>because ion always have + or -
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<span>Permeable means that a material is full of tiny, connected airspaces that allows water to seep through it.</span>
1) CH2 (gas) + Br (solid) -> BrC (solid) + H2 (gas)
2) a) CH4 + Br2 -> CH3Br + HBr
2) b) methane + bromine is substitution because one hydrogen atom from methane is replaced by one bromine atom. addition reaction takes place when one molecule combines with another to form a larger molecule so therefore a molecule from X and bromine combine to form XBr.
Polar will always have the higher boiling point because they have strong van der waal forces
The atomic radius increases down a column (group) and decreases along a row
