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
mart [117]
3 years ago
5

1 point

Chemistry
1 answer:
Aleks04 [339]3 years ago
5 0

Answer:

Option D

Explanation:

A double displacement reaction is a type of reaction in which two reactants exchange ions to form two new compounds.

CaBr2 + 2NaOH → Ca(OH)2 + 2NaBr

Calcium Bromide + Sodium Hydroxide = Portlandite + Sodium Bromide

You might be interested in
Al + Fe2O3 → Al2O3 + Fe (Need to balance equation)
andriy [413]
20.7 g of Fe can be produced with 10.0g of Al

6 0
3 years ago
Balance each of the following redox reactions occurring in basic solution.MnO−4(aq)+Br−(aq)→MnO2(s)+BrO−3(aq)Express your answer
Ahat [919]

Answer : The balanced chemical equation is,

2MnO_4^-(aq)+Br^-(aq)+H_2O(l)\rightarrow 2MnO_2(s)+BrO_3^-(aq)+2OH^-(aq)

Explanation :

Rules for the balanced chemical equation in basic solution are :

  • First we have to write into the two half-reactions.
  • Now balance the main atoms in the reaction.
  • Now balance the hydrogen and oxygen atoms on both the sides of the reaction.
  • If the oxygen atoms are not balanced on both the sides then adding water molecules at that side where the more number of oxygen are present.
  • If the hydrogen atoms are not balanced on both the sides then adding hydroxide ion (OH^-) at that side where the less number of hydrogen are present.
  • Now balance the charge.

The half reactions in the basic solution are :

Reduction : MnO_4^-(aq)+2H_2O(l)+3e^-\rightarrow MnO_2(s)+4OH^-(aq) ......(1)

Oxidation : Br^-(aq)+6OH^-(aq)\rightarrow BrO_3^-(aq)+3H_2O(l)+6e^-  .......(2)

Now multiply the equation (1) by 2 and then added both equation, we get the balanced redox reaction.

The balanced chemical equation in a basic solution will be,

2MnO_4^-(aq)+Br^-(aq)+H_2O(l)\rightarrow 2MnO_2(s)+BrO_3^-(aq)+2OH^-(aq)

8 0
2 years ago
Look at the rock sitting on the hill in the picture above. Gravity should make the rock slide down the hill. What force is actin
nexus9112 [7]

I believe the answer you are looking for is Static Friction. Static Friction is the force that holds an object in place until it starts to move. Then it switches to rolling friction.

For example, if you have a 1/2 ton truck sitting in front of you and the truck is in neutral. (meaning it can roll if pushed). The truck is extremely hard to move at first. That is because static friction is holding it in place until the amount of force exceeds the limit of static friction.

So if we continue to push at the truck and you feel it starting to move, then once it starts moving it is much easier to push, that is because we moved past static friction to rolling friction. Rolling friction is what helps slow things down. If you roll a ball across a carpet floor it eventually comes to a stop.

5 0
3 years ago
Read 2 more answers
Is chemical a example of natural forces
Nastasia [14]
The only types of natural forces are gravitation, electromagnetism, the weak interaction, and the strong interaction. So no, chemical is not an example of a natural force.
I hope this helps.
7 0
3 years ago
Read 2 more answers
In a be atom a 1s electron has a greater zeff than a 2s electron true or false
Degger [83]
Edrtfyguhiopobhoirhbvw ;iuerjvnwikrjhvn;owjber;ovqjbiufvjbwneri;uqhuoerhjnvhjiurvnwierujvbkqer.jbvliqukjrbvg
7 0
3 years ago
Other questions:
  • Which of the following is a form of antimatter?
    11·2 answers
  • Explain why the pressure exerted by a gas does not depend on the type of the gas.
    9·1 answer
  • If I add together water and an effervescent tablet, will the total mass before mixing be less than, equal to, or greater than th
    6·2 answers
  • Calculate the work when a cylinder equipped with a piston changes volume from 0.200 L to 0.600 L against an external pressure of
    15·1 answer
  • Which formula is an empirical formula?
    8·1 answer
  • Okay this is not school related but how do you not fall for some one so hard .
    13·1 answer
  • In the diagram, above, marker E is pointing to a __________, which is the “winding” shape that a river can take and its shape is
    12·1 answer
  • 100. g of ice at 0 is added to 300.0 g of water at 60C. Assuming no transfer of heat to
    11·1 answer
  • Given that the formula of butane C4H10 the accepted value for the molar mass should be
    11·1 answer
  • the ground-state valence-shell configuration of a particular atom is 4d105s25p1. the element to which this atom belongs is a
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!