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
Ray Of Light [21]
2 years ago
6

Who are the scientists that contributed in arranging of the periodic table?

Chemistry
1 answer:
Irina-Kira [14]2 years ago
7 0
In 1869 Russian chemist DIMITRI MENDELEEV started the development of the periodic table,arranging chemical elements by atomic mass. He predicted the discovery of other elements and left spaces open in his periodic table for them. HOPE THIS HELPSS HAVE A GREAT DAY <333
You might be interested in
Concerning Boyle's Law, if you had a gas at a pressure of 101 kPa and decreased the volume of the container holding the gas to o
Viefleur [7K]

Answer:

P_2=404 kPa

Explanation:

Hello,

In this case, the Boyle's is mathematically defined via:

P_1V_1=P_2V_2

Which stands for an inversely proportional relationship between volume and pressure, it means the higher the volume the lower the pressure and vice versa. In such a way, since the volume is decreased to one quarter, we can write:

V_2=\frac{1}{4} V_1

We can compute the new pressure:

P_2=\frac{P_1V_1}{V_2} =\frac{P_1V_1}{\frac{1}{4} V_1} =\frac{101kPa*V_1}{\frac{1}{4} V_1} \\\\P_2=4*101kPa\\\\\\P_2=404 kPa

Which means the pressure is increased by a factor of four.

Regards.

7 0
2 years ago
What is the correct prefix for 3 <br> tri-<br> di-<br> mono-<br> tetra-
Ivenika [448]

Answer:

tri-

Explanation:

Examples could be Tri-angle, Tri-cycle, Tri-ceratops

5 0
2 years ago
Read 2 more answers
which solution below would be considered the most acidic?a. 2.9 x 10-4 m hclb. 4.5 x 10-5 m hno3c. 1.0 x 10-7 m nacld. 1.5 x 10-
kkurt [141]

Answer:

a. 2,9x10⁻⁴ M HCl

Explanation:

A solution is considered acidic when its concentration of H⁺ is higher than 1x10⁻⁷. The higher concentration of H⁺ will be the most acidic solution.

a. 2,9x10⁻⁴ M HCl. In water, this solution dissolves as H⁺ and Cl⁻. That means concentration of H⁺ is 2,9x10⁻⁴ M.

b. 4,5x10⁻⁵M HNO₃. In the same way, concentration of H⁺ is 4,5x10⁻⁵M.

c. 1,0x10⁻⁷M NaCl. As this solution doesn't produce H⁺, the solution is not acidic

d. 1,5x10⁻²M KOH. This solution produce OH⁻. That means the solution is basic nor acidic.

Thus, the solution considered the most acidic is a. 2,9x10⁻⁴ M HCl, because has the higher concentration of H⁺.

I hope it helps!

7 0
2 years ago
WILL GIVE BRAINLIST NEED ASAP
Nookie1986 [14]

V=n/M

V=2.5/6=0.416 L

7 0
2 years ago
Determine the number of atoms in 3.54 mol Mn.
Anarel [89]
2.13x10^24 is the answer.
3 0
2 years ago
Other questions:
  • Temperature is used to measure the movement of particles such as atoms and molecules. As temperature increases, what is true of
    7·2 answers
  • Which reason best explains why metals are shiny?
    8·1 answer
  • How sig figs are in 28.0
    12·2 answers
  • HELP PLEASE. 50 points!
    10·2 answers
  • To make lemonade Erica dissolved 30 g of sugar in a certain amount of water. By what amount is the mass of water likely to incre
    15·1 answer
  • When we convert one metric unit to another the conversion factor is always exactly equal to 1. true or false
    12·1 answer
  • When a compound is oxidized it ______ one or more electrons; whereas when a compound is reduced it _____ one or more electrons?
    15·2 answers
  • HELPPPPP PLEASE
    14·1 answer
  • HELPPPPP ASAP PLEASEEE
    8·2 answers
  • Clouds form when water vapor out of the air
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!