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
notka56 [123]
3 years ago
15

How could Mendeleev predict the properties of elements that had not yet been discovered?

Chemistry
1 answer:
icang [17]3 years ago
3 0
It was the element of aluminium where they predict their properties <span />
You might be interested in
Which of these laboratory techniques is best to separate a solid from a liquid to recover the liquid? f chromatography g filteri
galina1969 [7]
Answer:
            Filtering <span>is best laboratory technique to separate a solid from a liquid to recover the liquid.

Explanation:
                   A solid particles present in liquids can be separated from liquid by utilizing a membrane having pores large enough to allow the liquid molecules to pass through and small enough to stop the solid particles from crossing. 

Example:
              Tea Filters are used to separate Tea from the grounds.

              Kidney is an excellent example of Biological Filter.

              </span><span>Whatman Cellulose Filter Paper used in Chemistry Labs.</span>
3 0
3 years ago
Alcohol consumption can do all of the following things except ______________________________.
Sonja [21]

Answer:

Increase blood flow to the hands and feet

Explanation:

6 0
3 years ago
50 points!!!<br> Please help me
oee [108]
30. mixture of compounds
31. compound
32. element
33. compound
34. compound
34. mixture of elements and compounds
5 0
3 years ago
Which metal in Period 5 is very reactive and has two valence electrons in each atom? rubidium (Rb) strontium (Sr) zirconium (Zr)
vladimir1956 [14]
<h3>Answer:</h3>

           Strontium (Sr)

<h3>Explanation:</h3>

                        The condition given in statement is the presence of two valence electron. Hence, first we found the electronic configuration of given atoms as follow;

                       Rubidium                         [Kr] 5s¹

                      Strontium                        [Kr] 5s²

                       Zirconium                         [Kr] 4d² 5s²

                      Silver                                 [Kr] 4d¹⁰ 5s¹

From above configurations it is cleared that only Strontium and Zirconium has two electrons in its valence shell.

We also know that s-block elements are more reactive than transition elements due to less shielding effect in transition elements hence, making it difficult for transition metals to loose electrons as compared to s-block elements. Therefore, we can conclude that Strontium present in s-block with two valence electrons is the correct answer.

4 0
3 years ago
Read 2 more answers
Calculate the average time it took the car to travel 0.25 What is the average time it took the car to travel 0.25
DedPeter [7]

Answer:

Explanation:

idk why all u guys like trump who do.. hes just a big pain in the a*s.

8 1
3 years ago
Read 2 more answers
Other questions:
  • If the half-life of technitium-104 is 18.0 min, how much of a 14.2-g sample will remain after 72 minutes?
    12·2 answers
  • According to naming rules, the types of compound that use prefixes in their names are ________.
    15·1 answer
  • Which of the following suggests that a physical change has taken place in an ice cube
    6·1 answer
  • non metals are generally non conductors of electricity. Graphite is non metal but is is used as electrodes in batteries.
    7·1 answer
  • This is the last one thank you to anyone who helps ​
    15·2 answers
  • X2o3 express you answer as a whole number
    5·1 answer
  • Identify each substance as an acid or a base.
    12·2 answers
  • What two atoms are held together by a covalent bond in NaHCO3
    10·1 answer
  • How can changes in the structure of DNA lead to the development of nutrients in species
    13·1 answer
  • How could you use
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!