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
Pepsi [2]
3 years ago
9

What is a mole?

Chemistry
1 answer:
fredd [130]3 years ago
7 0

Answer:

B.

Explanation:

One mole is the amount of substance that contain the Avogadro number which is equal to 6.022×10^23 atom, molecules or ions.

You might be interested in
Scientists think the earth is approximately how old?
tiny-mole [99]

I think the answer is approximately 4.12 billion years since the amount of years is 4.543 billion years

6 0
3 years ago
Read 2 more answers
If a falling rock undergoes a Δv of 112ms due to an a¯¯¯ of 9.8 m/s2, how long did it fall? A. 6.7 seconds B. 11.4 seconds C. 0.
tresset_1 [31]

Answer:

9.8

Explanation:

5 0
3 years ago
What is the pH of a 0.083 solution of HCI
quester [9]

Answer:

The pH is 1.08,  being an acid pH

Explanation:

pH is a parameter used to measure the degree of acidity or alkalinity of a substance. The pH scale ranges from 0 to 14. Values ​​less than 7 indicate the acidity range and those greater than 7 indicate alkalinity or basicity. Value 7 is considered neutral. Mathematically, pH is the negative logarithm of the molar concentration of hydrogen or proton ions (H⁺) or hydronium ions (H₃O⁺).

pH= - log [H⁺]= - log [H₃O⁺]

A strong acid is an acid that completely dissociates into hydrogen ions and anions in solution. This implies that the initial concentration of acid is equal to the final concentration of H₃O⁺. This occurs with acid HCl.

So,  pH is calculated as:

pH= - log (0.083)

pH= 1.08

<u><em>The pH is 1.08,  being an acid pH</em></u>

8 0
3 years ago
what would be the effect on the properties of the water molecule if oxygen and hydrogen had equal electronegativity?
ohaa [14]

Answer:

It would no longer be a polar molecule with a slightly positive and slightly negative ends. It then would not be able to dissolve ionic salts or polarized organic compounds such as sugar.

Explanation:

7 0
3 years ago
What occurs in order to break the bond in a Cl2 molecule?
alukav5142 [94]
The bond between the 2 Cl atoms in a Cl₂ molecule is a covalent bond. 
to break this covalent bond, energy is required. 
when new bonds form, energy is released as the bond formation makes the molecule stable. molecules with low energy levels are usually stable. 
To break the covalent bond, energy is required in other words energy is absorbed. 
therefore to break the covalent bond in Cl₂ molecule 
1)energy is absorbed
3 0
3 years ago
Read 2 more answers
Other questions:
  • Is the genie in the bottle experiment a physical or chemical change/reaction?
    9·1 answer
  • Janice is given a mixture of alcohol and water. The teacher tells her that she can use temperature to separate these compounds.
    13·2 answers
  • When looking across the periodic table from left to right, which is the first group that contains nonmetals?
    8·2 answers
  • Please help I need the answer now. Write a balanced equation for combustion of pentane in plenty supply of air and in limited su
    7·1 answer
  • PPPLLLSSS HELP NOW 15 POINTS WHOEVER ANSWERS
    14·1 answer
  • Can someone help me with these two?
    6·2 answers
  • Possible isomers of C4H9I​
    12·1 answer
  • Write the general formula of an alkane and use this to predict the 97th member
    13·1 answer
  • Select True or False: The reaction of hydrogen chloride gas with propene will yield 1-chloropropane as the main product
    7·1 answer
  • Using the information in the table, calculate the number of moles in a \pu{7.89 kg}7.89 kg7, point, 89, space, k, g sample of as
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!