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
anastassius [24]
4 years ago
5

Based on solubility rules what ions in water might interfere with the analysis of calcium ions by precipitation of calcium carbo

nate
Chemistry
2 answers:
Pavlova-9 [17]4 years ago
6 0
First, we must know what happens in the precipitation reaction. This type of reaction is a double replacement reactions. It is consists of two reactant compounds which interchange cations and anions to form two products. One of the products is an insoluble solid called a precipitate. For the precipitation of CaCO₃, there are two consecutive reactions involved:

1. Slaking of quicklime, CaO
    CaO + H₂O ⇒ Ca(OH)₂

2. Precipitation
    Ca(OH)₂ + CO₂ ⇒ CaCO₃ + H₂O

The ions that make up the H₂O molecule are H⁺ and OH⁻. According to solubility rules, the cation (positively charged ion) is likely to be attracted to an anion (negatively charged ion). Together, they form an ionic bond. This type of bond is when there is a complete transfer of electrons between the two. The Ca²⁺ cation lacks 2 electrons, while the anion OH⁻ has an excess 1 electron. In order to be stable, 1 Ca²⁺ ion and 2 OH⁻ ions must combine.

Therefore, the answer is OH⁻ ion.
RideAnS [48]4 years ago
4 0

The right answer is OH- (hydroxide).


Water can ionize in (H +) and (OH-). OH- can bind to calcium (the calcium of CaCl2 for example) to form Ca (OH) 2.


Ca++ + 2 OH- ==> Ca (OH) 2


Calcium hydroxide is a mineral chemical body, an ionic compound of the calcium cation and the hydroxide anion.

You might be interested in
One problem caused by technology is pollution
balandron [24]
I think this is true because..

technology negatively affects the environment by compromising human health and safety... endangering natural ecosystem and biodiversity... having a cumulative impact on global systems... and depleting natural resources. Technology positively affects the environment through the application of environmental science to solve problems caused by human environmental impact.

 Risks to humans from environmental damage through technology include inhalation of dangerous chemicals in air pollution, contamination of water and food sources, and risk of infections and diseases through exposure to toxic wastes. Flora and fauna risk habitat loss or disruption and extinction of species through exposure to dangerous byproducts of technology. Greenhouse gases affect atmosphere and weather systems, causing global warming and chlorofluorocarbons that deplete the Earth's ozone layer. Technology consumes resources which are not necessarily renewable, including living resources, such as forests and populations of fish, and inanimate resources, such as natural chemicals and minerals.

Although technology damages the environment in many ways..it can also have the capability to limit or prevent  damage using such environmental technologies such as recycling...the exploitation of renewable energy sources such as solar power and wind power... the purification of polluted air and water,and the treatment of sewage and factory wastes.. and the development and production of devices that promote energy conservation.....so this is why i think this is the answer! ☺

Hopefully this helped you!☺

4 0
4 years ago
A scientist has isolated a fatty acid that has 26 carbons. Most of the carbon atoms in the fatty acid chain are connected by sin
igomit [66]

Answer:

Polyunsaturated

Explanation:

A fatty acid is a compound that is derivative from a carboxylic acid. The chain of carbons can have since 4 carbons to more than 20 carbons. The bonds between carbons can be simple, which are called saturated bonds, or double, or triple, which is called unsaturated bonds.

When a fatty acid only has saturated bonds between carbons, it's called a saturated fatty acid. If there is only one unsaturated bond, it's called an unsaturated fatty acid, and if there are two or more unsaturated bonds, it's called polyunsaturated fatty acid.

3 0
3 years ago
Read 2 more answers
Unscramble the following words to form a complete sentence about the cycles of nature:
Luden [163]

Answer: idk I have that question too , sorry to get ur hopes up high thinking this was an answer.  PERIOTTTT

Explanation:

8 0
3 years ago
The eastfork forest contains pine trees, birch trees, and dogwood trees. All the trees in this forest are considered a(n) _____
Vesna [10]

Answer:

The answer is community

I got it correct

Explanation:

6 0
4 years ago
Read 2 more answers
A sample of gas is held at 1000C at a volume of 20 L. If the volume is increased to 40 L, what is the new temperature of the gas
kaheart [24]

Answer:

The new temperature will be 2546 K or 2273 °C

Explanation:

Step 1: Data given

The initial temperature = 1000 °C =1273 K

The volume = 20L

The volume increases to 40 L

Step 2: Calculate the new temperature

V1/T1 = V2/T2

⇒with V1 = the initial volume = 20L

⇒with T1 = the initial temperature = 1273 K

⇒with V2 = the increased volume = 40L

⇒with T2 = the new temperature = TO BE DETERMINED

20L/ 1273 K = 40L / T2

T2 = 40L / (20L/1273K)

T2 = 2546 K

The new temperature will be 2546 K

This is 2546-273 = 2273 °C

Since the volume is doubled, the temperature is doubled as well

8 0
3 years ago
Other questions:
  • What is the molar concentration of h3o+ in a cola that has a ph of 4.240?
    13·1 answer
  • The Ba(OH)2 dissociates as Ba+2 + 2 OH-. H2SO4 dissociates as 2 H+ + SO4-2. When the conductivity is at a minimum, what must be
    15·1 answer
  • The proper protective equipment for working with hazardous chemicals in the lab includes close lab coat goggles and a fume Hood
    15·1 answer
  • What is the scientific term for rocks formed from magma
    5·1 answer
  • A solid that forms from liquids in a chemical reaction is called a<br><br> PLZ HELP
    7·1 answer
  • Draw Lewis structures for each of the following moecules. Show resonance structures, if they exist A) O2 B) N2 C)CO D)SO2
    6·1 answer
  • Pure nitrobenzene freezes at 5.67 C. When 1.0g of ethanol (C2H6O) is mixed with 20.0g nitrobenzene, the freeze point drops to –0
    7·1 answer
  • A solution of H 2 SO 4 ( aq ) with a molal concentration of 1.66 m has a density of 1.104 g / mL . What is the molar concentrati
    11·1 answer
  • What is the process of scientific inquiry and why it is not a rigid sequence of steps?
    10·2 answers
  • Think about the atom research that John Dalton, Sir Joseph John Thomson, Sir Ernest Rutherford,
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!