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
Alisiya [41]
3 years ago
9

Why do we observe national day​

Chemistry
1 answer:
WITCHER [35]3 years ago
5 0

A national day is a day on which celebrations mark the nationhood of a nation or state. It may be the date of independence, of becoming a republic, or a significant date for a patron saint or a ruler (such as a birthday, accession, or removal). The national day is often a public holiday.

You might be interested in
Which of these is a chemical property of a substance
marissa [1.9K]
I think it's reactivity. but i'm not sure.
8 0
3 years ago
Read 2 more answers
As the number of electrons added to the same principal energy level increases, atomic size generally
iVinArrow [24]

As the number of electrons added to the same principal energy level increases, atomic size generally

C. Decreases.

4 0
3 years ago
Read 2 more answers
What happens to the ionizing rate if the steps of ionizing polyprotic acid increases?
Tanzania [10]

Answer:

<h3>An acid that contains more than one ionizable proton is a polyprotic acid. The protons of these acids ionize in steps. The differences in the acid ionization constants for the successive ionizations of the protons in a polyprotic acid usually vary by roughly five orders of magnitude.</h3>
5 0
2 years ago
Read 2 more answers
What is the atomic number of hydrogen??
Nataly_w [17]
The number is is surely 1
5 0
3 years ago
How many grams of NaCl are needed to prepare 60 g of a 6.0% solution?
AlekseyPX

Answer:

3.6 grams of NaCl are needed

Explanation:

Percent solution are solutions whose concentrations are expressed in percentages. The amount(either weight or volume) of a solute is expressed as a percentage of the total weight or volume of solution. Percent solutions can either be expressed as  weight/volume % (wt/vol % or w/v %), weight/weight % (wt/wt % or w/w %), or volume/volume % (vol/vol % or v/v %).

A 6.0% wt/wt % solution contains 6 g of solute in 100 g of solution

Therefore, a 100 g solution contains 6.0 g of solute.

60 g of 6.0% solution will contain  60 g solution * 6.0 g solute/ 100 g solution

Mass of NaCl present =  3.6 g  of NaCl

3 0
3 years ago
Other questions:
  • What effect does shape and size have on an object's density?
    13·1 answer
  • What is a major difference between Animalia and Plantae kingdoms?
    15·1 answer
  • Which of the following makes an element different from all other elements?
    10·1 answer
  • What are electrolytes?
    12·1 answer
  • Please Help Me<br> please help me with my attachment
    7·2 answers
  • What is the molar mass of Ammonium Carbonate?
    5·1 answer
  • Again help. (3)to power negative 3 × (1/3)to power negative 5 ×(1/3) to the power negative 2​
    12·1 answer
  • In the reaction, HCl + NaOH NaCl + H₂O, what is/are the reactant(s)?
    9·1 answer
  • Which of the following terms refers to the area immediately around the eye
    13·1 answer
  • What is forensic science?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!