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
Xelga [282]
3 years ago
7

‘By using displacement reactions it is possible to deduce the order of reactivity of the halogens.’

Chemistry
1 answer:
Rashid [163]3 years ago
7 0

Answer:

Explanation:

The halogens have seven electrons in their outermost shell. Each halogen atom lacks a single electron to make their octet a complete one. Elements in the halogen group are univalent and also acceptors of electrons. They are all non-metals and oxidizing agents. The oxidizing power of the halogens decreases from top to down the group. This is why the more powerful halogens displaces a less powerful one from simple salts.

         Cl₂ + 2KBr → 2KCl + Br₂

         Cl₂ + 2KI → 2KCl + I₂

          Br₂ + 2KI → 2KBr + I₂

          I₂ + 2KCl → No reaction

           

You might be interested in
Ciudadanía.
vazorg [7]
La ciudadanía cambia conforme el tipo de democracia
4 0
3 years ago
The haploid cell of an organism has 18 chromosomes. How much would a diploid cell have?
Reika [66]

Answer:

It would have 23 chromosomes.

Explanation:

A Diploid is a cell or organism that has paired chromosomes, one from each parent.

In humans, cells other than sex cells, a diploid will have 23 pairs of chromosomes.

6 0
3 years ago
An endothermic process is one in which heat is ________ from the surroundings. (2 points)
Marina CMI [18]
The answer is 1) gained
Always <span><span>think "into" for "endo" (energy goes in), and "exit" for "exo" (energy is released).</span> </span>

Hope it helps ^-^

7 0
2 years ago
2. Barium compounds are chemically very similar to strontium compounds. Water-soluble
harina [27]

The ability of sodium sulfate to act as an antidote to barium chloride poisoning is because displaces barium in barium chloride to form sodium chloride and insoluble harmless barium sulfate.

<h3>Why is a solution of sodium sulfate used as an antidote?</h3>

The ability of sodium sulfate to act as an antidote to barium chloride poisoning is because of the reactivity of sodium.

Sodium is a more reactive metal than barium, so it displaces barium in barium chloride to form sodium chloride and insoluble harmless barium sulfate.

The equation of the reaction is given below:

  • BaCl2 + Na2SO4 ----> BaSO4 + NaCl

Therefore, the ability of sodium sulfate to act as an antidote to barium chloride poisoning is because displaces barium in barium chloride to form sodium chloride and insoluble harmless barium sulfate.

Learn more about about reactivity of metals at: brainly.com/question/24866635

6 0
2 years ago
Read 2 more answers
Consider the following reaction. How many moles of oxygen are required to produce 2.33 moles of water? Assume that there is exce
aleksandr82 [10.1K]
The reaction between <span>C3H7SH and oxygen can be illustrated using the following balanced equation:
</span>C3H7SH (l) + 6O2 (g) --> 3 CO2 (g) + SO2 (g) + 4 H2O (g)
From the balanced equation above, 6 moles of oxygen are required to produce 4 moles of water.
Therefore, to know the number of oxygen moles needed to produce 2.33 moles of water, all you have to do is cross multiplication as follows:
number of oxygen moles = (2.33*6) / 4 = 3.495 moles 
4 0
3 years ago
Read 2 more answers
Other questions:
  • Alpine Marmots are a type of rodent that have the ability to decrease their body activity to conserve food. These marmots most l
    12·1 answer
  • When hydrochloric acid reacts with potassium hydroxide solution, the following reaction occurs. HCl (aq) + KOH (aq) H2O (l) + KC
    7·2 answers
  • !!!!!!!!!!!!!!!????<br> hElP!!!!!!!!!!!!
    8·2 answers
  • If two poisonous elements are combined chemically, which of the following will be true of the resulting compound?
    14·2 answers
  • Because ________ change the identity of the substances involved, they are hard to reverse
    9·1 answer
  • Nicotine (C10H14N2), a plant alkaloid, is an oily liquid that makes up between 0.6 to 3% of a cigarettes mass. Contact with the
    5·1 answer
  • 5.0 g of NaCl is dissolved in water, and the solution is brought to a final volume of 150 mL. What is the molarity of this solut
    13·1 answer
  • What is the mole ratio of water to H3PO4?
    9·1 answer
  • Is sulfur dioxide a compound, mixture or element? Thanks!
    15·1 answer
  • A 50.0- mL volume of 0.15 M HBr is titrated with 0.25 M KOH . Calculate the pH after the addition of 14.0 mL of KOH
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!