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
Xelga [282]
3 years ago
7

The first attempt to classify the elements was made by newlands true or false​

Chemistry
1 answer:
Keith_Richards [23]3 years ago
8 0

Answer:

True. An English scientist by the name of John Newlands tried to classify the elements in a unique manner. He first started by arranging all the elements in a ascending order according to their atomic weights.

You might be interested in
PLZ HELP (SCIENCE) Match the following items.
FromTheMoon [43]
Oxidation: a chemical change resulting form a reaction with oxygen
Endothermic:a reaction that takes in energy
Exothermic: a reaction that releases energy
Decomposition:chemical change whereby a molecule breaks down into simpler moles clues or elements
Subscript:written underneath or below
6 0
2 years ago
Read 2 more answers
What will happen If CH4 is added to the following reaction at equilibrium CH4 (g) + 2H2O (g) <------> 3H2 (g) + CO2 (g)
inysia [295]

Answer:

the answer is D  

:)

:D

Explanation:

6 0
2 years ago
Help please .......<br><br>​
pshichka [43]

Answer:

The first one is a divergent plate boundary.

The second is a convergent plate boundary.

The third is a transform plate boundary.

Explanation:

8 0
3 years ago
The mass number of 3 isotopes of magnesium are 24,25,26.what is the mass number of the most abundant isotope of magnesium.​
Anarel [89]

Answer:

24.4 amu or g/mole

Explanation:

24 x 0.790 = 19.0 amu

25 x 0.100 = 2.50 amu

26 x 0.110 = 2.86 amu

(Because of the 19.0, the sig figs go only to the 1/10 decimal place)

19.0 + 2.5 + 2.9 = 24.4 amu or g/mole

7 0
2 years ago
F.ree points for all!
shepuryov [24]

Answer:

here...I helped u! XD

jkjk...I'll got to the other questions too...dw! XD

Explanation:

4 0
2 years ago
Other questions:
  • A certain compound is made up of one carbon (c) atom, two bromine (br) atoms, and one oxygen (o) atom. what is the chemical form
    10·2 answers
  • Express your views on how the law, the citizens and community can protect and support victims of human rights violations
    15·1 answer
  • Which of phase changes requires an input of energy
    12·1 answer
  • Question 8 of 10
    6·1 answer
  • How many grams of NaCl should be added to 250 grams of waterto<br> make a 0.40 m solution?
    6·1 answer
  • Choose all the answers that apply.
    14·2 answers
  • The subatomic particles are.........
    14·1 answer
  • A student says that since the atomic theory is just a theory, it should not be considered useful. Which
    11·1 answer
  • HELPPP ASAP
    8·2 answers
  • When a reaction mixture reaches chemical equilibrium, ____.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!