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
Arisa [49]
4 years ago
15

30. a. How do the properties of metals differ from those

Chemistry
1 answer:
Ahat [919]4 years ago
3 0

Explanation:

Metals are elements that ionized by loss of electrons.

Ionic and molecular compounds are usually non-metals.

Properties of metals:

  • Metals have free mobile electrons and the metallic bonding ensures that.
  • They are usually electropositive and freely looses their electrons.
  • None of the metal is soluble without a chemical change occurring.
  • They are ductile and malleable.
  • Metals are good conductor or heat and electricity in their free uncombined state.
  • They are lustrous.

B. The specific property of metals accountable for their unusual electrical conductivity is due to the presence of free mobile electrons in their lattices.

learn more:

Metals brainly.com/question/2474874

#learnwithBrainly

You might be interested in
When you are doing an experiment that will have multiple trials, how do you handle averages?
son4ous [18]
The answer is B. <span>The individual trials and the averages should each have their own columns in the data table.

In an experiment, you want to be able to see all of the data, so you should always include the data from each individual trial; however, it's important to have a separate column for averages, so you are able to compare all of the data.

Hope this helps! :)</span>
5 0
4 years ago
Read 2 more answers
Which of the following is the main reason to use titration in chemistry
zvonat [6]
Most likely to find the equivalence point, equilibrium point, or concentration of a substance or solution!
6 0
4 years ago
What is the ph of a solution which is 0. 023 m in weak base and 0. 037 m in the conjugate weak acid ( a = 7. 1 × 10^−6)?
Rzqust [24]

The pH of a solution which is 0.023 m in weak base and 0 037 m in the conjugate weak acid whose Ka= 7.1 × 10⁻⁶ is 4.93.

pH determines the amount of hydrogen and hydroxide ions in a solution. It is the negative logarithm of hydrogen ion concentration.

Given,

Ka= 7.1 × 10⁻⁶

Weak base = 0.023M

Acid = 0.037M

Using base dissociation constant, Ka we can calculate pKa by:

pKa = -log [Ka]

pKa = -log [7.1 × 10⁻⁶]

pKa = 5.15

A weak base and its conjugate acid are present in equal proportions in buffer solution. Using the Henderson-Hasselbalch equation, we can find out the pH of a buffer solution that constitutes a weak base and its conjugate acid.

Using Henderson-Hasselbalch equation,

pH = pKa + log [Weak base / acid]

pH = 5.15 + log [0.023 / 0.037]

pH = 5.15 + log[0.6]

pH = 5.15 - 0.22

pH = 4.93

Therefore, the pH of the solution is 4.93.

Learn more about pH here, brainly.com/question/22390063

#SPJ4

     

   

5 0
2 years ago
Using complete sentences, explain how to predict the products and balance the reaction between sulfuric acid and potassium hydro
My name is Ann [436]

Answer:

The answer to your question is given below.

Explanation:

The reaction of sulfuric acid and potassium hydroxide is called neutralisation.

Neutralisation is a reaction involving an acid and a base which produces salt and water only.

For the react between sulfuric acid, H2SO4 and potassium hydroxide, KOH, we can predict the products obtained as follow:

H2SO4 + KOH —>

In solution, H2SO4 and KOH will dissociate as follow:

H2SO4(aq) —> 2H^+(aq) + SO4^2-(aq)

KOH(aq) —> K^+(aq) + OH^-(aq)

H2SO4 + KOH —>

2H^+(aq) + SO4^2-(aq) + K^+(aq) + OH^-(aq) —> K^+(aq) + SO4^2-(aq) + 2H^+(aq) + OH^-

H2SO4 + KOH —> K2SO4 + H2O

Now, we can balance the above equation as follow:

H2SO4 + KOH —> K2SO4 + H2O

There are 2 atoms K on right side and 1 atom on the left side. It can be balance by writing 2 in front of ko as shown below:

H2SO4 + 2KOH —> K2SO4 + H2O

There are 2 atoms of H on the right side and a total of 4 atoms on the left side. It can be balance by writing 2 in front of H2O as shown below:

H2SO4 + 2KOH —> K2SO4 + 2H2O

Now,the equation is balanced.

6 0
4 years ago
A physical change is change
HACTEHA [7]

Answer:

The answer is D

Explanation:

All the other options are associated with chemical change

3 0
3 years ago
Read 2 more answers
Other questions:
  • You have two samples of the same gas in the same size container, with the same pressure. The gas in the first container has a Ke
    14·1 answer
  • How do inorganic and organic compounds differ?
    5·1 answer
  • what common water pollution caused mainly by power plants and factories resulting in the death of many aquatic organisms
    13·1 answer
  • How many grams of KCl is produced if 32.4 grams of O2 is produced?
    7·1 answer
  • The total number of electrons in one mole of fluorine molecules (F2) is
    10·1 answer
  • Which of the following statements are true of acids and bases?
    8·1 answer
  • Gas pressure is caused by
    13·1 answer
  • Predicting Reaction Products<br><br> Sn + CuCl2
    9·1 answer
  • What force is needed to accelerate a truck with mass 2,000 kg at a rate of 5.0
    12·1 answer
  • Which element is a metalloid?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!