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
jeka57 [31]
3 years ago
10

In chemistry class, a student conducted an investigation on the factors that affect the solubility of copper (II) sulfate (CUSO)

in water. The data were recorded in the following table.

Chemistry
1 answer:
beks73 [17]3 years ago
3 0

Answer:

See Explanation

Explanation:

The rate of a chemical reaction depends on certain factors. Some of these factors include; surface area, temperature, nature of reactants etc.

The trial that exhibits the slowest rate of dissolution of CuSO4 crystals is trial 2 because the crystals have a small surface area since the crystals were large. Also, the solution was not agitated or stirred to increase the rate of collision between the water and the CuSO4 crystals.

Increase in temperature, agitation of the reaction solution and high surface area increases the rate of collision between the water and CuSO4 crystals leading to a faster rate of dissolution. This occurs in trial 3.

You might be interested in
Please help me order these bonds urgent
Lyrx [107]

Answer:

From least polar covalent to most polar covalent;

S-I< Br-Cl < N-H< Te-O

From most ionic to least ionic

Cs-F> Sr-Cl> Li- N> Al-O

Explanation:

Electro negativity refers to the ability of an atom in a bond to attract the shared electrons of the bond towards itself.

Electro negativity difference between two atoms is a key player in the nature of bond that exists between any two atoms. A large difference in electron negativity leads to an ionic bond while an intermediate difference in electro negativity leads to a polar covalent bond.

Based on electro negativity differences, the bonds in the answer have been arranged in order of increasing polar covalent nature or decreasing ionic nature.

6 0
3 years ago
A gaseous mixture contains 443.0 Torr H 2 ( g ) , 369.9 Torr N 2 ( g ) , and 82.7 Torr Ar ( g ) . Calculate the mole fraction, χ
mr_godi [17]

Answer:

χH₂ = 0.4946

χN₂ = 0.4130

χAr = 0.0923

Explanation:

The total pressure of the mixture (P) is:

P = pH₂ + pN₂ + pAr

P = 443.0 Torr + 369.9 Torr + 82.7 Torr

P = 895.6 Torr

We can find the mole fraction of each gas (χ) using the following expression.

χi = pi / P

χH₂ = pH₂ / P = 443.0 Torr/895.6 Torr = 0.4946

χN₂ = pN₂ / P = 369.9 Torr/895.6 Torr = 0.4130

χAr = pAr / P = 82.7 Torr/895.6 Torr = 0.0923

3 0
3 years ago
Which of the following lists the correct symbol for the ion that tin forms when it loses 2 electrons, the correct classification
ser-zykov [4K]

Answer:

\huge\boxed{\sf Option \ A}

Explanation:

The symbol for TIN is Sn.

When Sn loses 2 electrons, it gets a double positive charge ( +2 ) and becomes \sf Sn ^{+2}.

It becomes a cation.

The name of Ion is Tin ( II ) Ion.

\rule[225]{225}{2}

Hope this helped!

<h3>~AH1807</h3>
6 0
3 years ago
Read 2 more answers
What is the difference between solute and solvent
ratelena [41]

Answer:

A solvent is a substance which dissolves a solute. When a solvent dissolves into a solute, it creates a solution

5 0
3 years ago
Specify the number of protons, neutrons, and electrons in the neutral atom chromium-52
Alborosie
Its has 24 protons, 24 electrons, and 28 nuetrons

3 0
3 years ago
Read 2 more answers
Other questions:
  • Which particles are found in an atom have charges
    12·2 answers
  • Select all the characteristics that will probably yield an ionic bond. Each answer refers to two atoms, Atom X and Atom Y. Atom
    5·2 answers
  • Yosef is playing with different kinds of rubber bands. Some are very narrow and some are quite wide. Yosef is curious about the
    6·2 answers
  • PLEASE HELP!! 50 POINTS!!! WILL MARK BRAINLEST!!!!
    12·2 answers
  • NaOH + X ----&gt; NaCH3COO + H2O
    10·1 answer
  • If 1.80 moles of NaCl was dissolved in enough water to make 3.60 L of solution, what is the Molarity?
    7·1 answer
  • How does the structure of the steroid EXPLAIN the function of the steroid?
    7·1 answer
  • Calculate the number of moles in 125g of Copper (II) Hydroxide. URGENT!
    11·1 answer
  • What type of chemical reaction is <br> 2Al(s) + + 3Cl2(g) – 2AlCl3(s)
    9·1 answer
  • Which inner planet has 2 moons? Question 2 options: Mercury Venus Earth Mars
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!