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geniusboy [140]
3 years ago
8

Number of molecules in 4HCl​

Chemistry
1 answer:
katrin2010 [14]3 years ago
6 0

Answer:

its not cear to answer this question

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Given the equation: N2 +202->2NO2, what mass of oxygen is required to react completely
Reil [10]
48.400 g of nitrogen is 76.0
4 0
4 years ago
How much heat energy is required to raise the temperature of 0.360 kg of copper from 23.0 ∘C to 60.0 ∘C? The specific heat of co
AVprozaik [17]
MThe  heat  energy  required  to  raise  the  temperature   of  0.36Kg   of  copper   from   22 c   to  60  c  is  calculate  using  the  following  formula

MC delta T
m(mass)=  0.360kg  in  grams  =  0.360  x1000 = 360 g
  c(specific  heat  energy)  =  0.0920  cal/g.c
delta T =  60- 23  = 37  c

heat  energy is therefore=  360g   x0.0920 cal/g.c  x 37  c=  1225.44  cal

5 0
3 years ago
Calculate the relative molecular mass of Ma(HCO3)2​
Alex

Answer:I believe you mean Mg(HCO3)2. Since I have never heard of the element MA. but if you are calculating using mg(HCO3)2 your molar mass/ molecular mass will be  146.3387

Explanation:

8 0
3 years ago
In the equation C3H8 + O2 -> CO2 + H2O, what coefficient belongs in front of the O2 group?
tankabanditka [31]

Answer:

3

Explanation:

C3H8. + 5O2. ::: 3CO2. + 4H2O

4 0
3 years ago
When sugar is added to a glass of water, it dissolves. How do you know this?
strojnjashka [21]

Answer:

Use a spoon, scoop up a small amount of the syrup. When you do, you won't be able to see any sugar crystals in the liquid which is water.

8 0
3 years ago
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