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Zolol [24]
2 years ago
8

Whats the density of mass?

Chemistry
1 answer:
Fudgin [204]2 years ago
7 0

Answer:

it depends on the mass of the object but sometimes smaller objects have more density the higher the mass the the lower the density

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Find the molar mass of Ca(NO3)2
spayn [35]

 The  molar  mass  of  Ca(NO₃)2  is 164 g/mol


<u><em> Explanation</em></u>

Ca(NO₃)2   is  made  up of   Ca  , N  and  O  elements

Therefore the  molar mass  of Ca(NO₃)2   =  molar  mass  of Ca +  molar  mass  of N +molar mass of O


from periodic table the molar mass of  Ca is 40 g/mol

for  N  =  14 g/ mol

 for  O = 16 g/mol. since they are  3 atoms  of O in  Ca(NO₃)2  the  molar mass = 16  x3 = 48  g/mol


The molar  mass   of Ca(NO₃)2 = 40 g/mo  + [(14  g/mol + 48 g/mol) 2] =164g/mol


6 0
3 years ago
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Mademuasel [1]

Answer:

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5 0
2 years ago
1) identify the physical state of the substances pictured.
Damm [24]
Can't help because APPARENTLY there is a picture that goes along with the questions. Post it and I can help.
3 0
3 years ago
T he thermochemical equation for the reaction between hydrazine, N2H4, and dinitrogen tetroxide is given as: 2N2H4(2) N204 (1) 3
SpyIntel [72]

Answer:

4N2H4(2) + 2N204 (1) --> 6N2 (g) + 8H20 (g), AHO-2098 kJ

Explanation:

2N2H4(2) + N204 (1) --> 3N2 (g) + 4H20 (g),AHO-1049 kJ

when 6 mol of nitrogen are formed?

The ratio of Nitrogen in the previous therrmochemical equation to when 6 mol f nitrogen are formed is 2; 6/3 = 2.

So to get the new thermoochemical equation, multiply all parameters in the given equation by 2.

We have;

4N2H4(2) + 2N204 (1) --> 6N2 (g) + 8H20 (g), AHO-2098 kJ

6 0
2 years ago
For a neutral Nitrogen, how many electrons are in the 2p electron orbitals?
Marta_Voda [28]
3 electrons would be in the 2p orbital
3 0
2 years ago
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