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lesantik [10]
3 years ago
6

What is the percent composition of silicon dioxide, SiO2 ? (Atomic masses : O = 16 . 0 Si =28 .1

Chemistry
1 answer:
weeeeeb [17]3 years ago
4 0

Answer:

60.1 i think

Explanation:

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Use the iupac nomenclature rules to give the name for this compound - n2o3.
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  By  use   IUPAC  nomenclature   rule  compound  N2O3  is  named  as  

Dinitrogen  trioxide  (  answer  d)

Nitrogen (N2) is  named  before  oxygen(O3)  since    they  are  arranged  alphabetically.  In   addition  the  prefix  Di  is   used   infront  of  nitrogen  since    they  are  two  nitrogen  atoms   while  prefix  tri  is   used  infront  of  oxide  since  they  are 3   oxygen   atoms
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2 years ago
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What event happens underwater to cause a tsunami?
azamat
The Earth's crust or is it the continental plates one of the two but they push against each other costing a tsunami.
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3 years ago
During the third stage of labor what happens? (it's not C)
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Answer:

B

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5 0
1 year ago
Write a balanced equation formed when the following elements react with oxygen:a)Zinc
Ainat [17]

Explanation:

a) when zinc burnt in oxygen.

2Zn + O2 -----∆-----> 2ZnO(black residue)

b) when carbon burnt in oxygen.

C+O2----∆---> CO2.

c) when sulphur burnt in oxygen.

S+O2-----∆-----> SO2.

d) when Calcium burnt in oxygen.

2Ca+O2-----∆-----> 2CaO(black residue)

e) when Magnesium burnt in oxygen.

2Mg+O2-----∆----> 2MgO.

f) when sodium burnt in oxygen.

4Na+O2----∆-----> 2Na2O.

hope all these reactions help you.

4 0
2 years ago
HELPPPPPPPP!!!!!
lana [24]

Answer:

To calculate the theoretical yield, determine the number of moles of each reactant, in this case the sole reactant ethanol. Convert the 100 g to moles; the molecular weight of ethanol is 46 g/mole, therefore: Since there is only one reactant, it is also the limiting reagent.

Explanation:

IM SORRY I AM BUSY TO BUT PLEESE ALL I GOT RIGHT NOW

MAKE ME BRANLIEST

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