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
tensa zangetsu [6.8K]
3 years ago
10

Sodium (Na) has 11 protons and 12 neutrons. What is its isotope notation?

Chemistry
1 answer:
DedPeter [7]3 years ago
7 0

Answer:

Na ²³

ndnxnxnxnxnxnxnxnxn

You might be interested in
Isotopes are atoms of an element
stellarik [79]
D. With the same number of protons and different number of neutrons.
6 0
3 years ago
Using GRIGNARDS REAGENT convert methane to ethanol
slamgirl [31]

Answer:

J

Explanation:

6 0
3 years ago
What is the reaction between aspirin and hydrochloric acid
faust18 [17]
According to Bronsted-Lowry reaction- an acid is any substance that donates a proton (H+ ion) to another substance hence these two substance are acid aspirin (acetylsalicyclic acid) and hydrochloric acid (HCl). And there are two pairs - an acid with a corresponding conjugate base and a base with a corresponding conjugate acid. These pairs are called conjugate acid-base pairs.
6 0
3 years ago
Match each term below with its definition or description.
zubka84 [21]

Answer:

1. Equivalence point

2. Direct titration

3. Primary standard

4. Titrand

5. Back titration

6. Standard solution

7. Titrant

8. Indirect titration

9. End point

10. Indicator

Explanation:

1. The equivalence point is the tiration point at which the quantity or moles  of the added titrant is sufficient or equal to the quantity or moles of the analyte for the neutralization of the solution of the analyte.

2. Direct titration is a method of quantitatively determining the contents of a substance

3. A primary standard is an easily weigh-able representative of the mount of moles contained in a substance

4. A titrand is the substance of unknown concentration which is to be determined

5. The titration method that uses a given amount of an excess reagent to determine the concentration of an analyte is known as back titration

6. A standard solution is a solution of accurately known concentration

7. A titrant is a solution that has a known concentration and which is titrated unto another solution to determine the concentration of the second solution

8. Indirect titration is the process of performing a titration in athe reverse order

9. The end point is the point at which the indicator indicates that the equivalent quantities of the reagents required for a complete reaction has been added

10 An indicator is a compound used to visually determine the pH of a solution.

5 0
3 years ago
Which equation represents an oxidation-reduction reaction?
bazaltina [42]
In an oxidation-reduction reaction there is an exchange of electrons.


The exchange of electrons implies change in the oxidation states: at least one element increases its oxidation number while other reduces it.


By simple ispection you can predict that in the equation b. there is a change in oxidation states of Cl and Mn.


Now you can check it:


Equation             4H   Cl     +    Mn  O2     ->    Mn  Cl2   + 2H2 O     + Cl2    

oxidation sates   1+  1-             4+   2-              2+   1-         1+   2-         0


The oxidation state of Cl in HCl is 1-  and it changed to 0 in Cl2


The oxidation state of Mn in MnO2 is 4+ and it changed to 2+ in MnCl2 


Answer b.   
3 0
3 years ago
Other questions:
  • What is the electron configuration of an isolated s atom?
    5·1 answer
  • 8. A log is burning in a fireplace. If the amount of oxygen reaching the log is decreased, which of the
    6·2 answers
  • How is stoichiometry used to calculate the amount of product from amount of reactant?
    8·2 answers
  • What is the parts of the Transverse wave and longitudinal wave
    8·1 answer
  • When a sample of rust was mixed with acid, the rust changed into two simpler substances: W and Z. The substances W and Z could n
    15·2 answers
  • In which block of the periodic table is chromium (Cr) found? s block d block p block f block
    7·2 answers
  • For the following reaction, 9.30 grams of glucose (C6H12O6) are allowed to react with 13.8 grams of oxygen gas. glucose (C6H12O6
    15·1 answer
  • Li(OH) --> Li2O + H20
    8·1 answer
  • Identify the scientist associated with each major contribution to the development of atomic theory. He discovered the electron.
    11·1 answer
  • there are 3 isotopes of the element Gz: Gz-80,Gz-81,Gz-83. the average atomic mass of Gz is 82.74. what is the most abundant iso
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!