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Evgesh-ka [11]
3 years ago
5

Why did mendeleyev leave spaces in the periodic table

Chemistry
2 answers:
aalyn [17]3 years ago
8 0

Answer:

Mendeleev left spaces in his periodic table because he predicted there were elements that weren't discovered yet that would fit in these spaces.

Explanation:

Kisachek [45]3 years ago
4 0

Answer:

He left gaps in his periodic table to place elements not known at the time.

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Mass of the element Cr
Rus_ich [418]

Answer:

Chromium/Atomic mass

51.9961 u

Explanation:

3 0
3 years ago
In a voltaic cell
deff fn [24]

Answer:

im only 11 but By convention in standard cell notation, the anode is written on the left and the cathode is written on the right. So, in this cell: Zinc is the anode (solid zinc is oxidised). Silver is the cathode (silver ions are reduced).

Explanation:

5 0
4 years ago
How are mitosis and meiosis similar​
il63 [147K]

Explanation:

Mitosis and Meiosis are forms of cell division. They use the same steps for cell division which are Prophase, Metaphase, Anaphase and Telophase.

Mitosis produces 2 diploid cells while Meiosis produces 4 haploid cells.

Meiosis stages -

  • Interphase
  • Prophase I
  • Metaphase I
  • Anaphase I
  • Telophase I
  • Prophase II
  • Metaphase II
  • Anaphase II
  • Telophase II
  • Cytokineses

Mitosis stages

  • Prophase
  • Prometaphase
  • Metaphase
  • Telophase

<em><u>Hope this helps!</u></em>

<em><u>Please mark brainliest!</u></em>

7 0
4 years ago
When a diprotic acid, , is titrated with , the protons on the diprotic acid are generally removed one at a time, resulting in a
marshall27 [118]

Answer:

At the second equivalent point 200 mL of NaOH is required.

Explanation:

at the first equivalent point:

                              H2A    +     OH-       =     HA-  +     H2O

initial mmoles        y*100         y*100            -                -

final mmoles            0                0                 y*100       y*100

at the second equivalent point:

                              HA-    +     OH-       =     A2-  +     H2O

initial mmoles        y*100         y*100            -                -

final mmoles            -                -                 y*100       y*100

at the second equivalent point we have that y*100 mmoles of NaOH or 100 mL of NaOH ir required, thus:

at the second equivalent point 200 mL of NaOH is required.

4 0
4 years ago
When cool, dense air from over the water flows inland, it's called a ____. a. land breeze c. jet stream b. polar easterly d. sea
AlekseyPX
When cool, dense air from over the water flows inland, it's called a sea breeze.

God bless!
8 0
3 years ago
Read 2 more answers
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