1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Andrews [41]
3 years ago
13

Example. A Student wants to increase the maximum if sugar that can dissolve in water..She crushes the sugar and then stirs it in

to the water .Does This work?
Chemistry
2 answers:
Advocard [28]3 years ago
8 0

Answer:

Yes this works.

Explanation:

This works because when the sugar is crushed, more of the surface area of the sugar gets exposed to the solvent, allowing the solvent to dissolve it a lot quicker than when it wasn't crushed.

Stirring also helps the sugar particles dissolve faster. This is because the particles are now agitated, which increases their kinetic energy.  This increase in Kinetic energy is reflected by increase in temperature, which helps the particles dissolve faster.

Delvig [45]3 years ago
6 0

Answer: yes it does work.

Explanation:

When the sugar is crushed by the student, an increase in the number of molecules of sugar occurs. Meaning that more number of the solute (sugar molecules) are able to interact with the solvent (the water).

Therefore, there will be more number of collisions taking place between the solute and solvent molecules.

Hence, we can say it works because this leads to more interaction or collisions between the solute and solvent particles, as a result of this increased interaction between solute and the solvent, sugar will dissolve readily into the water.

You might be interested in
Which of these is a characteristic of chemical change?
Bond [772]
The correct answer is c, it’s evaporating there for it’s a chemical change
8 0
2 years ago
Urea is a common fertilizer with the formula CO(NH2)2 that is sometimes used as a chemical de-icer for icy road surfaces in the
nordsb [41]

Answer:

The answer to your question is  molality = 0.61

Explanation:

Freezing point is the temperature at which a liquid turns into a solid if a solute is added to a solution, the freezing point changes.

Data

Kf = 1.86 °C/m

molality = ?

ΔTc = 1.13°C

Formula

ΔTc = kcm

Solve for m

m = ΔTc/kc

Substitution

m = 1.13 / 1.86

Simplification and result

m = 0.61

4 0
3 years ago
Moraines left by glaciers are different from deposits left by rivers because the rocks left behind are _____.
12345 [234]

Explanation:

unorganized and unsorted i think this is the answer

7 0
3 years ago
Which of the following would have the largest pKa?
garri49 [273]

Answer:

CH3CH2NH3+/CH3CH2NH2 would have the largest pKa

Explanation:

To answer this question we must know Kb of CH3CH2NH2 is 5.6x10⁻⁴, and for C6H5NH2 is 4.0x10⁻¹⁰. And the CH3CH2NH3+ and C6H5NH3+ are related with these substances because are their conjugate base. That means:

pKa of  CH3CH2NH3+ =  CH3CH2NH2;  C6H5NH3+ =  C6H5NH2

Also, Kw / Kb = Ka

Thus:

pKa of CH3CH2NH3+/CH3CH2NH2 is:

Kw / kb = Ka = 1.79x10⁻¹¹

-log Ka = pKa

pKa = 10.75

pKa of C6H5NH3+/ C6H5NH2 is:

Kw / kb = Ka = 2.5x10⁻⁵

-log Ka = pKa

pKa = 4.6

That means CH3CH2NH3+/CH3CH2NH2 would have the largest pKa

5 0
3 years ago
If you put magnets together and allow them to arrange themselves, how will the poles be aligned?
vodka [1.7K]
Magnets have batteries and the batteries make the magnets work it depends on which way the batteries are facing or if not im sorry and i hope this helped
5 0
2 years ago
Other questions:
  • The Law of Conservation of Energy is one of the most important principles in all of science. What does conservation mean in this
    11·2 answers
  • What is a orgasm that kills and eats other orgasms for food called?
    15·2 answers
  • How does an ion differ from an atom?
    7·2 answers
  • All of these are examples of things that produce light energy except.
    13·2 answers
  • 1. How many ATOMS of boron are present in 2.20 moles of boron trifluoride ? atoms of boron.
    7·1 answer
  • Consider the Mg2+, Cl-, K+, and Se2- ions.The four spheres below represent these four ions, scaled according to ionic size. A) M
    6·2 answers
  • how many grams of oxygen reacted with 50.7f of potassium? how many molecules of potassium oxide are formed?​
    9·2 answers
  • Which of the following most likely happens when thermal energy is removed from a chemical reaction?
    15·1 answer
  • Energy that is lost as heat
    9·1 answer
  • what safety rule does not apply to the organic chemistry laboratory? no eating, drinking, or smoking in the laboratory. wear pro
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!