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likoan [24]
3 years ago
15

Which of the following is true for all types of fronts

Chemistry
1 answer:
juin [17]3 years ago
8 0
Is there multiple choice?
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A reaction produces 74.10 g Ca(OH)2 after 56.08 g CaO is added to 36.04 g H2O. How should the difference in the masses of reacta
melomori [17]
Cao +  H2O  ---->Ca(OH)2
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 
 explained  as 
 1  mole   of  Cao  reacted  completely   with   1  mole   H2O  to  produce  1 mole  of  Ca(OH)2. The  mass  of  water   was  in  excess  while  that  of  CaO  was  limited

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3 years ago
HELP MEEEEE PLEASEEEE​
Ira Lisetskai [31]
Okay lol


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Cells in different tissues or organs (skin, eye, bone, etc.) contain different DNA. true or fasle,?
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What are valence electrons? how many of a magnesium atom’s 12 electrons are valence electrons?
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It has 2 valence electrons.

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