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ddd [48]
3 years ago
7

I need to know the mass of the block of iron

Chemistry
1 answer:
const2013 [10]3 years ago
7 0

800 g

I do believe this is the answer. :D


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How does the modern periodic table arrange elements?
Norma-Jean [14]
<span>The </span>elements are arranged<span> in order of increasing atomic number. Vertical columns(called groups) contain </span>elements with similar properties. Horizontal rows called periods elements with<span> the same number of atomic orbitals(That's why Hydrogen and Helium are separated from the rest of the table).

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3 years ago
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A chemist wants a 0. 100 M solution of NaOH. She has 0. 0550 mol NaOH available. What volume of solution is needed to make the m
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The conversion of 37 ˚C to K
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Answer:

310.15

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Equal masses (in grams) of hydrogen gas and oxygen gas are reacted to form water. Which substance is limiting?
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the above balanced equation shows that 2 moles of H₂ is required for 1 mole of O₂

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assuming 'x' gm for each, no. of moles of each gas  =

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This shows that no. of moles of O₂ is very less so O₂ will become the limiting reagent.

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3 years ago
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What is the total number of liters of SO3 produced when 32.0 of SO2 reacts completely
ahrayia [7]
Write  the   chemical  equation   for  reaction
that  is  
2SO2+O2  --->2SO2

find  the   moles  of  SO2   used  =  moles=mass/molar mass  of  so2

=  32g/80g/mol=0.4 moles

by  use  of  reacting  ratio  between  SO2   and  SO3   which   is   2:2  therefore  the  moles  of  so3  is  also =  0.4  moles

STP  1 mole  =  22.4L.
what  about  0.4moles

= 0.4 /1 x22.4=8.96 liters
4 0
3 years ago
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