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
lana [24]
3 years ago
7

How is copper sulphate different to copper sulphide in terms of the elments it contains

Chemistry
1 answer:
son4ous [18]3 years ago
6 0

Answer:

An Element is a substance made up of only one type of atom as like gold, copper, oxygen, etc.

Copper sulphate with molecular formula (CuSO_4), the elements are copper, sulphur and oxygen. It is formed by combination of Cu^{2+} cation and SO_4^{2-} anion.

Copper sulphide with molecular formula (CuS), the elements are copper and sulphur. It is formed by combination of Cu^{2+} cation and S^{2-} anion.

You might be interested in
MARKING BRAINLIEST!
blagie [28]
Answer: B) Linda’s speed was slower than Meg’s speed

Explanation: Meg ran almost twice as fast as Linda since she took less time to finish the same amount of distance
8 0
3 years ago
The pH of a 0.78M solution of 4-pyridinecarboxylic acid HC6H4NO2is measured to be 2.53.Calculate the acid dissociation constant
nika2105 [10]

Answer : The value of acid dissociation constant is, 1.1\times 10^{-5}

Solution :  Given,

Concentration pyridinecarboxylic acid = 0.78 M

pH = 2.53

First we have to calculate the hydrogen ion concentration.

pH=-\log [H^+]

2.53=-\log [H^+]

[H^+]=2.95\times 106{-3}M

Now we have to calculate the acid dissociation constant.

The equilibrium reaction for dissociation of (weak acid) is,

                        HC_6H_4NO_2\rightleftharpoons C_6H_4NO_2^-+H^+

initially conc.         0.78                0             0

At eqm.               (0.78-x)              x             x  

The expression of acid dissociation constant for acid is:

k_a=\frac{[C_6H_4NO_2^-][H^+]}{[C_6H_4NO_2]}

As, [H^+]=[C_6H_4NO_2^-]=x

So,  x=2.95\times 106{-3}M

Now put all the given values in this formula ,we get:

k_a=\frac{(x)\times (x)}{(0.78-x)}

k_a=\frac{(2.95\times 106{-3})\times (2.95\times 106{-3})}{(0.78-2.95\times 106{-3})}

K_a=1.1\times 10^{-5}

Therefore, the value of acid dissociation constant is, 1.1\times 10^{-5}

7 0
4 years ago
When copper metal is heated to 1100 oC it melts. Is this a chemical or physical change? Explain your answer
Pani-rosa [81]

Answer:

it is a physical change

6 0
3 years ago
Read 2 more answers
Write equations for the initiation and propagation steps for the formation of dichloromethane by free radical
olya-2409 [2.1K]
 <span>Name of type of mechanism </span>initiation step<span> first </span>propagation step<span> second </span>propagation step<span>(ii) </span>write<span> an overall </span>equation<span> for the </span>formation of dichloromethane<span> from ... Best Answer: i) This is a </span>free-radical<span> substitution mechanism.</span>
7 0
3 years ago
One method for preparing a nitrile is the dehydration of a primary amide.
Olenka [21]
True because a dehydration reaction is a conversion that involves the loss of water from the reacting molecule or ion. Dehydration reactions are common processes, the reverse of a hydration reaction. Common dehydrating agents used in organic synthesis include sulfuric acid and alumina. Often dehydration reactions are effected with heating.
4 0
3 years ago
Other questions:
  • If the following weights have masses of 2, 4, 6 and 8 kg,
    5·1 answer
  • What are three terms used to describe organisms such as cow
    11·1 answer
  • Temperature for freezing point in°C
    6·2 answers
  • which state of matter would be described as having highly energized charged particles which move extremely fast
    6·2 answers
  • Which lists the elements in order from most conductive to least conductive
    9·2 answers
  • 1 mole of sulfur atoms has how much mass?
    12·1 answer
  • Name 3 sources of carbohydrates for the production of an alcoholic drink
    15·1 answer
  • Wine goes bad soon after opening because Ethanol (CH3CH2OH) dissolved in it reacts with oxygen (O2) gas to form water and Aqueou
    6·1 answer
  • Someone talk to meeeeee ;( ​
    13·2 answers
  • A fischer projection results due to the formation of a hemiacetal bond.<br> a. true <br> b. false
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!