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
Inga [223]
3 years ago
11

Why does reducing solute particle size increase the speed at which the solute dissolves in water? A. It exposes more of the solu

te to the water molecules. B. It makes the temperature of the water significantly higher. C. It raises the pressure of the water molecules on the solute. D. It makes the water molecules move around faster.
Chemistry
1 answer:
Umnica [9.8K]3 years ago
3 0

Answer:A

Explanation:For a given amount of solute, smaller particles have greater surface area. With greater surface area, there can be more contact between particles of solute and solvent.

You might be interested in
Strontium, a group 2 element with an electron configuration of 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^6 5s^2 , will form a _____
amid [387]

Answer:

Strontium, a group 2 element with an electron configuration of 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² , will form a +2 ion in a chemical bond.

Explanation:

An ionic bond is produced between metallic and non-metallic atoms, where electrons are completely transferred from one atom to another. During this process, one atom loses electrons and another one gains them, forming ions. Usually, the metal gives up its electrons forming a cation to the nonmetal element, which forms an anion.

So an ion is an atom or group of atoms that have an electric charge. A cation is an ion that has a positive charge.

The alkali metals in the earth (Elements IIA) lose two electrons to form a 2+ cation. Strontium is an alkali metal that loses the two electrons belonging to 5s², forming the +2 ion.

5 0
2 years ago
Paul added a sample of bromic acid to water and found the pOH to be 10. What is the pH of the solution?
Ket [755]

Answer:

Explanation:

pH + pOH = 14

pH + 10 = 14

pH = 14 - 10 = 4

Therefore pH of the solution is 4 .

6 0
2 years ago
Three radioisotopes are being discussed in a chemistry class. Technetium-99m has a half-life of 6 hours. Rubidium-87 has a half-
8_murik_8 [283]
A likely application of a radioactive isotope with a short half-life such as Technetium-99 will be as a medical tracer. It will likely be used by a doctor to check the movement of substances within a person's body.

A radioactive isotope with such a long half-life like Rubidium-87 is likely used in the determination of the age of fossils and artifacts found by archaeologists.<span />
5 0
3 years ago
Read 2 more answers
Picture has the question
xenn [34]

Answer:I believe it is 5

Explanation:

8 0
3 years ago
Read 2 more answers
g Where, approximately, is the negative pole on each of these molecules? Lewis structure for C O F 2. A central C atom is single
seropon [69]

The molecule with higher dipole moment is COFH because the geometry of the molecule in the COF2 nearly cancel the dipolar moment of each other. To be more clear:

The dipolar moment is the vectorial sum of all bond moments in the molecule or dipolar moment of each bond. The dipolar moment of a molecule with three or more atoms is determined by bond polarity as their geometry.

COF2 has a trigonal planar structure which are symmetric. The electronegativity of oxygen is slightly different regarding fluor. So as you can see in the image, the electronic density is specially displaced to the fluor atoms, but either to the oxygen atom.

COFH has a trigonal structure but differs from COF2 because there is an hydrogen who is donating it's electronic density, so in this zone the electronic density is less than over oxygen or fluor. That makes bond angles be different between them.

3 0
2 years ago
Read 2 more answers
Other questions:
  • How many atoms are in 1.50 moles of fluorine gas?
    15·2 answers
  • What is true about two neutral atoms of the element gold
    6·1 answer
  • Calculate the standard free energy change for the combustion of one mole of methane using the values for standard free energies
    5·1 answer
  • Using this balanced equation: 2 NaOH + H2SO4 —&gt; H2O + Na2SO4
    7·1 answer
  • Yosemite Falls, in California, has a total height of 73,000cm. What is the height in meters?
    12·2 answers
  • Why can't a bullet with a tiny mass have the same momentum as a moving truck?
    9·1 answer
  • A gas occupies 4.65 liters at 0.86 atm. What is the pressure if the volume becomes 15.27 L?
    15·1 answer
  • I don’t know how to do this
    13·1 answer
  • Can someone please help me on the second quick Check!!!!
    5·1 answer
  • 2. The volume of a rock is 5 cm' and its mass is 50 g. Find the density.<br> pls help :)
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!