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
Alik [6]
3 years ago
6

1. Addition of which of the following will increase the solubility of CaCO3 in water? Consider the equilibrium process:

Chemistry
1 answer:
kolbaska11 [484]3 years ago
6 0

Answer: HCl

Explanation:

calcium carbonate dissolves in HCl acid producing CO 2 gas. It will not dissolve in pure water. The Ksp for calcium carbonate in water is 3.4 x 10-9 moldm-3 which is very low. What takes place here is actually a chemical reaction:

CaCO 3 (s) + 2HCl(aq) → CaCl 2 (aq) + H 2CO 3(aq)

This reaction accounts for the solubility of the Calcium carbonate in HCl and not in pure water.

You might be interested in
Diatomic molecules will be ______ when they are composed of only one element.
Luden [163]
Diatomic molecules will be Nonpolar when they are composed of only one element.
3 0
3 years ago
Read 2 more answers
If 0.25 moles of KBr is dissolved in 0.5 liters of
Len [333]

Answer:

[KBr] = 454.5 m

Explanation:

m is a sort of concentration that indicates the moles of solute which are contianed in 1kg of solvent.

In this case, the moles of solute are 0.25 moles.

Let's determine the mass of solvent in kg.

Density of heavy water, solvent, is 1.1 g/L and our volume is 0.5L.

1.1 g = mass of solvent / 0.5L, according to density.

mass of solvent = 0.5L . 1.1g/L = 0.55 g

We convert the mass to kg → 0.55 g . 1kg /1000g = 5.5×10⁻⁴ kg

m = mol/kg → 0.25 mol /5.5×10⁻⁴ kg = 454.5 m

6 0
2 years ago
Peter and Jessica are both forensic scientists. Peter visits crime scenes to pr
ratelena [41]

Answer: Peter is a Field Officer and Jessica is a Lab Officer

Explanation:

For Plato it should be, Peter is a "Field officer" because he's going into the fiend of the crime scene to find his evidence

And Jessica is a "Lab officer" because she stay's in the lab to analyze the evidence brought to her by Peter  

8 0
3 years ago
Which elements are considered metals? Non-metals? Metalloids?
kolbaska11 [484]

The answer is in the photo.

3 0
3 years ago
A 2.0-liter aqueous solution contains a total of 3.0 moles of dissolved NH4Cl at 25°C and standard pressure.
vladimir1956 [14]
The molarity is a concentration unit which defined as the number of moles of solute divided by the number of liters of solution. So the molarity of the solution is 3/2=1.5 mol/L.
7 0
3 years ago
Read 2 more answers
Other questions:
  • The compound Fe2O3 contains how many atoms? <br> A) 2 <br> B) 3 <br> C) 5 <br> D) 7
    11·2 answers
  • Which element will have the greatest attraction for the calcium electrons?
    13·1 answer
  • Where does the light dependent reaction of photosynthesis occur? What is produced?
    5·1 answer
  • Four gases were combined in a gas cylinder with these partial pressures: 3.5 atm N2, 2.8 atm O2, 0.25 atm Ar, and 0.15 atm He. W
    10·1 answer
  • El butano, C4H10, se quema en presencia de oxígeno gas, O2, y se produce dióxido de carbono, CO2, y agua. ¿Cuántos kg de CO2 se
    7·1 answer
  • What are three factors homeowners should consider when choosing the site for a new house?
    7·2 answers
  • If a light bulb has a voltage of 1.5 V and has 2.5A of current running through it, what is the resistance of the light bulb?
    6·1 answer
  • What would the mass number of sodium be? atomic number 11 number of protons 11 number of neutrons 12
    8·1 answer
  • What is a object that produces heat by producing light please?
    6·2 answers
  • What is the nucleotide sequence of an mrna strand that has been transcribed from the dna sequence ggtagc?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!