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Harman [31]
2 years ago
13

Which of the following statements about minerals and ores is true?

Chemistry
1 answer:
Monica [59]2 years ago
3 0

Answer:

please give a photo I can't now to help u

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Which of the following best describes the location of element Tin?
Tomtit [17]

Answer:

The location of element tin is

Group 14, Period 5

Explanation:

7 0
3 years ago
Read 2 more answers
In stoichiometric calculations, which quantity MUST be used to convert from one chemical substance to another?
Cloud [144]

The answer is

C) mole ratio

4 0
2 years ago
calculate the enthalpy change for converting 1.00 mol of liquid water at 100 C to water vapor at 145 degree celsius for water Δ
Svetllana [295]

Answer:

q1 = mCpΔT

    = 18.016g × 1.84J/g.K × (418.15-373.15)

     = 1491.72 J

q2 = n×ΔH vap

     =  1mol ×44.0kJ/mol

     = 44KJ

∴ qtotal = q1+ q2

             = 1.498kJ + 44.0kJ

             = 45.498KJ

Explanation: The heat flow can be separated into steps.all that is being observed at a constant pressure,the heat flow is equal to the enthalpy.

8 0
3 years ago
Which type of bond is not backed by any specific collateral, such as land or equipment?
GrogVix [38]

Answer:

A

Explanation:

looking at both equity

and mortgage bond fixtures

I would rather say secured bond fit into not being backed by any specific collateral

7 0
2 years ago
Calculate the molar mass of B(NO3)3 ?​
Stella [2.4K]

The molar mass of B(NO₃)₃ - Boron nitrate : 196.822 g/mol

<h3>Further explanation</h3>

In stochiometry therein includes  

<em>Relative atomic mass (Ar) and relative molecular mass / molar mass (M)  </em>

So the molar mass of a compound is given by the sum of the relative atomic mass of Ar  

M AxBy = (x.Ar A + y. Ar B)  

The molar mass of B(NO₃)₃ - Boron nitrate :

M B(NO₃)₃ = Ar B + 3. Ar N + 9.Ar O

M B(NO₃)₃ = 10.811 + 3. 14,0067 + 9. 15,999

M B(NO₃)₃ = 196.822 g/mol

7 0
2 years ago
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