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
creativ13 [48]
4 years ago
14

Mendeleev organized the elements:

Chemistry
1 answer:
pashok25 [27]4 years ago
4 0

Answer: (3)

Medeleev arranged elements in order of increasing atomic weight and similar properties

He noticed that similar elements were grouped together by using this.

You might be interested in
How many taste buds are present on the tongue? Name them. ​
Serjik [45]

there are five Taste bud present tongue they are -

  1. SWEET
  2. SALT
  3. SOUR
  4. BITTER
  5. UMAMI
<h2>______________________</h2>

out of the four type of papillie present on tongue the fungiform circumvallate and folite papillie contain numerous small taste but few such type of Taste but also occur in the mucous membranes of soft palate tonsils and epiglottis all of these days but received taste is normally

each Taste bud is an oval structures formed due to modification of epithelial cells which are situated erect and vertically on the surface long sensory cells and supporting cells are found in this bird is sensory cell is spindle shaped in which a sensory here is found at its free in the century fibre of the facial and vagus cranial nerves are wrapped around the basal and of the gustatory cells each test but open on the epithelial surface through minute taste pore

<h2>____________________</h2>
4 0
2 years ago
What is the coefficient for O2 in the balanced version of the following chemical equation: C2H4+O2→CO2+H2O
andriy [413]

Answer:

3

Explanation:

Here's the balanced equation;

C2H4 + 3O2 → 2CO2 + 2H2O

C ⇒2                          C ⇒1 x 2 = 2

H ⇒4                          H ⇒2 x 2 = 4

O ⇒3 x 2 = 6             O ⇒ (2 x 2) + (2 x 1) = 6

6 0
3 years ago
Human activity can destroy coral reefs. Because so many organisms depend on the coral, this can have a negative effect on the ec
Maru [420]
G g consultancy s combining Dubsmash m coming
6 0
3 years ago
Read 2 more answers
How do I determine the number of a particle in a compound?
Vika [28.1K]

Answer:

The mathematical equation, N = n × NA, can be used to find the number of atoms, ions or molecules in any amount (in moles) of atoms, ions or molecules: 10 moles of helium atoms = 10 × (6.022 × 1023) = 6.022 × 1024 helium atoms.

Explanation:

6 0
3 years ago
PLEASE HELP!! WILL GET BRAINIEST!!
inessss [21]
1:) <span>Zn + 2 HCl = ZnCl2 + H<span>2
</span></span>2:) 4 Fe + 3 O2 = 2 Fe2O3
3 0
4 years ago
Other questions:
  • Predict the products of the decomposition of lithium nitride, Li3N
    12·2 answers
  • Which state of matter is characterized by having an indefinite shape, but a definite volume?
    5·2 answers
  • What is the name of this compound Ga2Se3
    13·2 answers
  • Please help me.<br><br>balance this equation <br><br>Al + 0(2) = Al0(3)
    12·1 answer
  • How do you know if you have a balanced equation?
    11·1 answer
  • How do you poop on that one kid next door i can not break in to do it while he sleeeps
    14·1 answer
  • How is John Travoltage different from the balloon and sweater game on PhET?
    5·1 answer
  • Explain chlorination of methane​
    7·1 answer
  • What is difference between boron and aluminium?​
    12·1 answer
  • In diffusion particles travel naturally (without cellular energy) from areas of ______________concentration to areas of ________
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!