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DiKsa [7]
3 years ago
14

The hydrogens and oxygen of a water molecule are held together by ______ bonds.

Chemistry
2 answers:
umka2103 [35]3 years ago
6 0
The hydrogens and oxygen of a water molecule are held together by covalent bond
german3 years ago
3 0
Covalent bonds, as they are both non metals
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Calculate   the  number  of  each   reactant  and  the  moles  of  the  product
that  is
moles = mass/molar mass
The  moles  of  CaO=  56.08g/  56.08g/mol(molar  mass  of  Cao)=  1mole
the  moles  of  water=  36.04 g/18  g/mol=  2.002moles
The   moles  of Ca (OH)2=74.10g/74.093g/mol= 1mole

 The  mass  of differences  of  reactant  and  product  can   be  therefore 
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