Ensemble des formules chimiques/H, He, Hf, Hg, Hs, Ho

H

${\rm {2H_{2(g)}+O_{2(g)}=2H_{2}O_{(l)}}}$ (bilan de réaction)

${\rm {H_{2(g)}+Br_{2(g)}=2HBr_{(g)}}}$ avec ΔH^o = 72.80 kJ ; ce bilan correspond à 5 étapes élémentaires:

\mathrm {Br} _{2}+\mathrm {M} \quad {\xrightarrow {k_{1}}}\quad 2\mathrm {Br} ^{\bullet }

\mathrm {H} _{2}+\quad 2\mathrm {Br} ^{\bullet }\quad {\xrightarrow {k_{2}}}\quad \mathrm {Br} ^{\bullet }+\mathrm {HBr} +\mathrm {H} ^{\bullet }

\mathrm {Br} _{2}+\mathrm {H} ^{\bullet }\quad {\xrightarrow {k_{3}}}\quad \mathrm {Br} ^{\bullet }+\mathrm {HBr}

\mathrm {HBr} +\mathrm {H} ^{\bullet }\quad {\xrightarrow {k_{4}}}\quad \mathrm {Br} ^{\bullet }+\mathrm {H} _{2}

\mathrm {Br} ^{\bullet }+\mathrm {Br} ^{\bullet }+\mathrm {M} \quad {\xrightarrow {k_{5}}}\quad \mathrm {Br} _{2}

${\ce {H2 + Cl2 -> 2HCl}}$

H⁺

${\rm {8H^{+}+2MnO+5PbO_{2}\to 5Pb^{2+}+2MnO_{4}^{-}+4H_{2}O}}$

${\rm {H_{(aq)}^{+}+OH_{(aq)}^{-}\to H_{2}O}}$

HBr

HCCH

HCN

HCONH₂

HCOO

HCOO−

HCOOH

HCOONH₄

HCO₃

HCO₃⁻

HC₃H₅O₃

HC₅H₅N+

HC₆H₇O₆

HC₉H₇O₄

HC₁₂H₁₇ON₄SCl₂

HCl

${\ce {HCl_{(aq)}{}+ KOH_{(aq)}{}-> KCl_{(aq)}{}+ H_2O_{(l)}{}}}$
${\ce {2 HCl_{(aq)}{}+ Fe_{(s)}-> H2_{(g)}{}+ FeCl2_{(aq)}}}$

HClO

HClO₂

HClO₃

HClO₄

${\rm {12HClO_{4}+P_{4}O_{10}\to 4H_{3}PO_{4}+6Cl_{2}O_{7}}}$

HDO

HF

HI

HIO₃

HNO₂

HNO₃

${\rm {10HNO_{3}+2MnO+5PbO_{2}\to 5Pb(NO_{3})_{2}+2HMnO_{4}+4H_{2}O}}$

HN₃

HOCl

HOF

HOOCCOOH

HPO₄₂−

HSO₃−

HSO₄−

HTO

H₂

${\ce {3 H2_{(g)}{}+ N2_{(g)}-> 2 N^{-III}H^{I}3_{(g)}}}$

H₂C(CH)CN

H₂CO

H₂CO₃

${\rm {H_{2}CO_{3}\to HCO_{3(aq)}^{-}+H_{(aq)}^{+}}}$

H₂CSO

H₂C₂O₄

H₂C₄H₄O₆

H₂C₈H₄O₄

H₂Ph

H₂CrO₄

H₂NCH₂COOH

H₂NNH₂

H₂O

${\ce {H2O + Na2O -> 2 NaOH}}$
${\ce {H2 O +CO2_{(g)}-> H2CO3_{(aq)}}}$
${\ce {H_2 O + Si_2 Al_2 O_5 ( O H )_4 -> 2 Si O2_{(aq)}{}+ 2 Al ( O H )_3}}$

H₂O₂

H₂PO₄−

H₂S

${\ce {H2S^{-II}{}+ 2 Fe^{III}Cl3 -> 2 HCl + S + 2 Fe^{II}Cl2}}$

H₂SO₃

H₂SO₄

${\ce {3 H_2SO_4_{(aq)}{}+ 2 KMn^{VII}O_4_{(aq)}{}+ 5 H_2O^{-I}_2_{(aq)}-> 8 H_2O_{(l)}{}+ 5 O2_{(g)}{}+ K_2SO_4_{(aq)}{}+ 2 Mn^{II}SO_4_{(aq)}}}$
${\ce {3 H^{I}2SO4_{(aq)}{}+ 2 Al_{(s)}{}-> 3 H2_{(g)}{}+ Al^{III}2(SO4)3_{(aq)}{}}}$
${\ce {8 H_2SO_4_{(aq)}{}+ 2 KMn^{VII}O_4_{(aq)}{}+ 10 Fe^{II}SO_4_{(aq)}-> 8 H_2O_{(l)}{}+ K_2SO_4_{(aq)}{}+ 2 Mn^{II}SO_4_{(aq)}{}+ 5 Fe^{III}_2(SO_4)_3_{(s)}}}$

H₂S₂O₇

H₂S₂O₈

H₂SeO₃

H₂SeO₄

H₂SiO₃

H₂TeO₃

H₂TiO₃

H₃AsO₄

H₃CCH₂CH₃

H₃N+CH₂COO

H₃N+CH₂COO−

H₃O

H₃O+

H₃PO₄

H₄XeO₆

H₆TeO₆

He

Hf

${\ce {Hf + 2 B -> HfB2}}$

HfBr₄

HfF₄

HfOCl₂·8H₂O

HfOH(C₂H₃O₂)₃

Hf(SO₄)₂

Hg

Hg(BrO₃)₂·2H₂O

HgBr₂

Hg(C₂H₃O₂)₂

Hg(C₇H₅O₂)₂·H₂O

HgClO₄·4H₂O

Hg(ClO₄)₂·3H₂O

HgCl₂

Hg(IO₃)₂

HgI₂

Hg(NO₃)₂·H₂O

Hg(CNO)₂

HgO

HgS

Hg(SCN)₂

HgSe

HgSeO₃

HgTe

HgTeO₃

HgWO₄

Hg₂Br₂

Hg₂Cl₂

Hg₂I₂

Hg₃(AsO₄)₂

Hs

Ho

${\rm {4Ho+3O_{2}\to 2Ho_{2}O_{3}}}$

${\rm {2Ho_{(s)}+3F_{2_{(g)}}\to 2HoF_{3_{(s)}}}}$

${\rm {2Ho_{(s)}+3Cl_{2_{(g)}}\to 2HoCl_{3_{(s)}}}}$

${\rm {2Ho_{(s)}+3Br_{2_{(g)}}\to 2HoBr_{3_{(s)}}}}$

${\rm {2Ho_{(s)}+3I_{2_{(g)}}\to 2HoI_{3_{(s)}}}}$

${\rm {2Ho_{(s)}+3H_{2}SO_{4_{(aq)}}\to 2Ho_{(aq)}^{+3}+3SO_{4_{(aq)}}^{2-}+3H_{2_{(g)}}}}$

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H

H+

HBr

HCCH

HCN

HCONH2

HCOO

HCOO−

HCOOH

HCOONH4

HCO3

HCO3−

HC3H5O3

HC5H5N+

HC6H7O6

HC9H7O4

HC12H17ON4SCl2

HCl

HClO

HClO2

HClO3

HClO4

HDO

HF

HI

HIO3

HNO2

HNO3

HN3

HOCl

HOF

HOOCCOOH

HPO42−

HSO3−

HSO4−

HTO

H2

H2C(CH)CN

H2CO

H2CO3

H2CSO

H2C2O4

H2C4H4O6

H2C8H4O4

H2Ph

H2CrO4

H2NCH2COOH

H2NNH2

H2O

H2O2

H2PO4−

H2S

H2SO3

H2SO4

H2S2O7

H2S2O8

H2SeO3

H2SeO4

H2SiO3

H2TeO3

H2TiO3

H3AsO4

H3CCH2CH3

H3N+CH2COO

H3N+CH2COO−

H3O

H3O+

H3PO4

H4XeO6

H6TeO6

He

Hf

HfBr4

HfF4

HfOCl2·8H2O

HfOH(C2H3O2)3

Hf(SO4)2

Hg

Hg(BrO3)2·2H2O

HgBr2

H⁺