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
pav-90 [236]
2 years ago
7

Please help... will give brainiest

Chemistry
1 answer:
Dvinal [7]2 years ago
7 0

Answer:

The answer will be :

In year 1869

Russian scientist named Dmitri Mendeleev

Chart called Mendeeleves periodic table

increasing atomic masses

physical and chemical properties.

Hope this Helps

Best of luck !!

You might be interested in
What particles would you find in a nucleus of an atom
sammy [17]

Answer:

The nucleus is a collection of particles called protons, which are positively charged, and neutrons, which are electrically neutral. Protons and neutrons are in turn made up of particles called quarks. The chemical element of an atom is determined by the number of protons, or the atomic number, Z, of the nucleus.

5 0
2 years ago
What is the mass of 1.88 mol Na
Rina8888 [55]
The answer to your question:

1.88 moles Na is 43.22 grams
5 0
3 years ago
Read 2 more answers
Define the following symbols that are encountered in rate equations: [A]0, t1/2 [A]t, k.
dezoksy [38]
[A]0= Initial concentration
t1/2= half life
[A]= final concentration
k= rate constant
5 0
3 years ago
Aluminum has a density of 2.70 g/m. Calculate the mass (in grams) of a piece of aluminum having a volume of 382 mL
Natalka [10]

The aluminum has a mass of 1031.4 grams.

8 0
3 years ago
What is the correct answer ??
Ber [7]

Answer:

[H_3 O^+] = 1.0 ×10^-13

Explanation:

If we multiply the left side we get, 1e - 13. We add 13 to the right side while subtracting the remaining value from the left side (H3O+) than combine like terms. As you will get pH = 13.00

7 0
4 years ago
Read 2 more answers
Other questions:
  • "which of these nitrogen compounds is in the most reduced state?"
    9·1 answer
  • A student dissolves 0.0688 mol of sodium hydroxide in water to make a 0.250 L solution. What is the molarity of the solution?
    13·1 answer
  • The combustion of toluene has a δerxn of −3.91 × 103kj/mol. when 1.55 g of toluene (c7h8) undergoes combustion in a bomb calorim
    6·1 answer
  • Which of the following statements is true?
    13·2 answers
  • Please help me balance this equation!!!!<br> _KOH + _HBr → -KBr + _H2O
    6·2 answers
  • How many grams are in 3.0 moles of H2O
    15·1 answer
  • Give one difference between molecule of an element and molecule of a compound with examples​
    9·1 answer
  • Need answer asap
    5·2 answers
  • What happens to the level of hydronium ions in a solution when the number of hydroxide ions decrease
    12·1 answer
  • Cerebrospinal fluid of the central nervous system and synovial fluid of joint capsules are both examples of _______.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!