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
vodomira [7]
3 years ago
7

Using your knowledge of colligative properties explain whether sodium chloride or calcium chloride would be a more effective sub

stance to melt the ice on a slick sidewalk.
Chemistry
1 answer:
Lisa [10]3 years ago
6 0
Sodium chloride because it contains the most reactive metal(sodium) and most reactive non-metal(chlorine).
You might be interested in
Abnormal behavior is defined as a?
hodyreva [135]

Answer:

Abnormality is a behavioral characteristic assigned to those with conditions regarded as rare or dysfunctional. Behavior is considered abnormal when it is atypical or out of the ordinary, consists of undesirable behavior, and results in impairment in the individual's functioning

Explanation:

5 0
3 years ago
Calculate the pH of a solution prepared by mixing: (Show your work for these calculations) pk of acetic acid is 4.75 a. two mole
kupik [55]

Answer:

Explanation:

To calculate pH you need to use Henderson-Hasselbalch formula:

pH = pka + log₁₀ \frac{[A^-]}{[HA]}

Where HA is the acid concentration and A⁻ is the conjugate base concentration.

The equilibrium of acetic acid is:

CH₃COOH ⇄ CH₃COO⁻ + H⁺ pka: 4,75

Where <em>CH₃COOH </em>is the acid and <em>CH₃COO⁻ </em>is the conjugate base.

Thus, Henderson-Hasselbalch formula for acetic acid equilibrium is:

pH = 4,75 + log₁₀ \frac{[CH_{3}COO^-]}{[CH_{3}COOH]}

a) The pH is:

pH = 4,75 + log₁₀ \frac{[2 mol]}{[2 mol]}

<em>pH = 4,75</em>

<em></em>

b) The pH is:

pH = 4,75 + log₁₀ \frac{[2 mol]}{[1mol]}

<em>pH = 5,05</em>

<em></em>

I hope it helps!

7 0
3 years ago
two critical requirements must be met before light elements, like hydrogen or helium, will fuse and form heavier elements. The t
svlad2 [7]
I had to look for the options and here is my answer:
The two requirements for nuclear fusion that are needed to be met in order for the elements hydrogen and helium fuse to make heavier elements are extremely high temperatures and density. Hope this helps.
4 0
3 years ago
Read 2 more answers
Find the volume of a cereal box that has the dimensions of 35.2 cm x 220 cm x 6.0 cm
notsponge [240]

Answer:

Volume = 35.2×220×6.0 = 46464 centimeters³

Explanation:

3 0
3 years ago
What is the correct name of the compound Pb(NO3)2?
Margaret [11]

Answer:

it's lead (ii) nitrate the name

4 0
2 years ago
Other questions:
  • What is the element name for Fe?
    11·2 answers
  • An electron is on a -2.5 eV energy level. the electron is stuck by a 2.5 eV photon. What will most likely happen?
    12·1 answer
  • Will give BRAINLIEST!!! Will give BRAINLIEST
    12·1 answer
  • The force that one surface exerts on another when the 2 rub against each other is called
    6·2 answers
  • During the recrystallization of a solid, the sample is dissolved in hot solvent then filtered while hot. The filtrate is allowed
    12·1 answer
  • What is the ph of a solution with a hydroxide ion concentration of 10–10m?
    14·1 answer
  • The volume of a gas is decreased from 100 liters at 173.0°C to 50 liters at a constant pressure. After the decrease in volume, w
    10·1 answer
  • Convection currents in Earth's core transfer heat and material to the surface.
    7·1 answer
  • How are reactivity patterns on the periodic table related to an element's use in everyday applications?
    15·1 answer
  • Write the nuclear equation for the beta decay of Aluminum-25.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!