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Olenka [21]
2 years ago
11

What are weather balloons? (3 points)

Chemistry
2 answers:
yKpoI14uk [10]2 years ago
5 0
The answer is c, they measure the conditions of the atmosphere to gather weather information
WARRIOR [948]2 years ago
4 0
C! objects that carry instruments into the stratosphere to measure atmospheric conditions
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Fan blades would be an analogy for which atomic model?
julia-pushkina [17]
I believe the correct answer from the choices listed above is option A. Fan blades would be an analogy for electron cloud model. Austrian physicist Erwin Schrödinger (1887-1961) developed an “Electron Cloud Model<span>” in 1926. It consisted of a dense nucleus surrounded by a cloud of electrons. Hope this helps.</span>
4 0
3 years ago
What is the molarity of a solution that contains 1000.0 mg of AgNO3 that has been dissolved in 500 mL of water
Vaselesa [24]

0.012moldm⁻³

Explanation:

Given parameters:

Mass of AgNO₃  = 1000mg

Volume of water = 500mL

Unknown:

Molarity of solution  = ?

Solution:

The molarity of a solution is the number of moles of a solute dissolved in volume of solvent.

 Molarity = \frac{xnumber of moles}{Volume}

 

Number of moles of AgNO₃  = ?

   Number of moles = \frac{mass}{molar mass}

Molar mass of AgNO₃ = 108 + 14 + 3(16) = 170g/mol

   convert mass to g;

      1000mg = 1g

 Number of moles  = \frac{1}{170}  = 0.00588moles

   convert the given volume to dm³;

       1000mL  = 1dm³;

        500mL = 0.5dm³

Now solve;

  Molarity = \frac{0.00588}{0.5}  = 0.012moldm⁻³

learn more:

Molarity brainly.com/question/9324116

#learnwithBrainly

4 0
3 years ago
Reflections-magnesium metal burns with a bright white flame. what conclusions can you draw about the electron transitions that c
topjm [15]

The conclusion that you can draw about the electron transitions that can take place for a magnesium atom is that the photons produced are not of a lone wavelength, therefore from many dissimilar levels to subsequent levels, with many different wavelengths joining to create white.

4 0
3 years ago
Aluminum has a density of 2.7 g/cm3. If a chunk of aluminum with a mass of 10.8 g is placed in a graduated cylinder partially fi
alisha [4.7K]
 The  water  level that will   rise  is  4  cm^3

calculation

if the density  i s   2.7 g/cm^3  this implies that   

 1cm^3  =  2.7 g
    ?        = 10.8  g

by  cross  multiplication

 (1 cm^3   x 10. 8 g) /2.7  g   =  4  CM^3
6 0
3 years ago
Read 2 more answers
PLEASE HELP NOW!!!!!!!
Dahasolnce [82]
The  number of moles hydrogen produced when 6 moles of sodium are used is calculated  as below

2Na + 2H2O = 2NaOH  +H2

by use of mole ratio between Na to H2 which is 2:1 the moles of H2 is therefore

= 6 x1/2 = 3  moles of H2
7 0
3 years ago
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