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Marta_Voda [28]
3 years ago
14

What are two ways to make a sugar cube dissolves faster in water

Chemistry
2 answers:
ruslelena [56]3 years ago
6 0

Answer:

c.warm water before adding the sugar cube

ipn [44]3 years ago
3 0

Answer:

C.Warm the warm the water before adding the sugar cube D. Break the sugar cube into smaller pieces

Explanation:

Heating. Speeds up particles causing them to bump and break, further exposing them to the solvent.

Increasing surface area. By crushing or breaking the solid, you are exposing it to more contact with the solute.

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18- The number of orbitals in each sublevel are:
Misha Larkins [42]

s2,p6,d10,f14

S contains 2 orbitals

P contains 6 orbitals

D contains 10 orbitals

F contains 14 orbitals

3 0
3 years ago
TIMED
zhannawk [14.2K]
Density = mass/volume
Density = 81g/0.9cm³
Density = 90g/cm³
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6 0
3 years ago
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How are stars and comets different?(2 points)
evablogger [386]

Answer:

A star is made up of burning gases, while a comet is made up of ice, gases, rocks, and dust.

Explanation:

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3 years ago
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How many protons, neutrons, and electrons are in 195Pt2+ ?
ladessa [460]

Answer:

The answer to your question is Protons = 78, Neutrons = 117, Electrons = 76

Explanation:

                                ¹⁹⁵Pt²⁺

Protons are equal to the atomic number, Platinum has an atomic number of 78 so the number of protons = 78.

The number of neutrons = Mass number - Number of protons

                                         = 195 - 78

                                         = 117

The number of electrons is equal to the number of protons - two, we know this because of the 2+ exponent next to the Platinum symbol.

Number of electrons = 78 - 2

                                  = 76

4 0
4 years ago
Calculate the mole fraction of each component in a solution of 42 g CH3OH, 35 g of chloroform CHCl3, and 50 g C3H7OH
koban [17]

Considering the definition of mole fraction, the mole fraction of each component in the solution is:

  • CH₃OH: 0.54
  • CHCl₃: 0.118
  • C₃H₇OH: 0.342

<h3>Mole fraction</h3>

The molar fraction is a way of measuring the concentration that expresses the proportion in which a substance is found with respect to the total moles of the solution.

<h3>Mole fraction of each component</h3>

In this case, in first place you should know that the molar mass of each component is:

  • CH₃OH: 32 \frac{g}{mole}
  • CHCl₃: 121.35 \frac{g}{mole}
  • C₃H₇OH: 60 \frac{g}{mole}

Now, the number of moles of each compound can be calculated as:

  • CH₃OH: \frac{42 g}{32\frac{g}{mole}}=  1.3125 moles
  • CHCl₃: \frac{35 g}{121.35\frac{g}{mole}}= 0.2884 moles
  • C₃H₇OH: \frac{50 g}{60\frac{g}{mole}}=  0.8333 moles

So, the total moles of the solution can be calculated as:

Total moles = 1.3125 moles + 0.2884 moles + 0.8333 moles

<u><em>Total moles = 2.4342 moles</em></u>

Finally, the more fraction of each component can be calculated as follow:

  • CH₃OH: \frac{1.3125 moles}{2.4342 moles}= 0.54
  • CHCl₃: \frac{0.2884 moles}{2.4342 moles}= 0.118
  • C₃H₇OH: \frac{0.8333 moles}{2.4342 moles}= 0.342

In summary, the mole fraction of each component in the solution is:

  • CH₃OH: 0.54
  • CHCl₃: 0.118
  • C₃H₇OH: 0.342

Learn more about mole fraction:

brainly.com/question/14434096

brainly.com/question/10095502

#SPJ1

4 0
3 years ago
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