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
ludmilkaskok [199]
3 years ago
15

What are the horizontal rows in the periodic table called?

Chemistry
2 answers:
mezya [45]3 years ago
7 0
In the periodic table, there are seven horizontal rows of elements called periods.
sergiy2304 [10]3 years ago
7 0

Answer:

they are called periods

Explanation:

You might be interested in
A4 g sugar cube (Sucrose : C 12 H 22 O 11 ) is dissolved in a 350 ml teacup of 80 C water. What is the percent composition by ma
lana66690 [7]

Answer:

%Sgr = 1% (1 sig.fig.)

Explanation:

mass water = 350ml x 0.975g/ml = 341.25g

mass sugar added = 4g

solution mass = 341.25g + 4g = 345.25g

%sugar = (4g/345.25g)·100% = 1.1586% ≅ 1% (1 sig.fig)

7 0
3 years ago
Who discovered the flame test
Genrish500 [490]

Answer:

Thomas Melvill

Explanation:

...

6 0
3 years ago
How are sound waves different from the waves in the sea or the ripples on water???
nirvana33 [79]

Answer:

water wave shake energy over the surface to the sea, while sound waves thump energy trough the body of the air. sound waves are compression waves

<em>Hope</em><em> this</em><em> </em><em>helps</em><em> </em><em>:</em><em>)</em>

5 0
3 years ago
What are the similarities between the crust and the inner core
alexira [117]

Answer: they both have large amounts of iron (Fe)

7 0
3 years ago
Draw the most stable resonance structure for the intermediate in the electrophilic aromatic bromination of aniline, anisole, and
ASHA 777 [7]

Answer:

Here's what I get

Explanation:

(a) Intermediates

The three structures below represent one contributor to the resonance-stabilized intermediate, in which the lone pair electrons on the heteroatom are participating (the + charge on the heteroatoms do not show up very well).

(b) Relative Stabilities

The relative stabilities decrease in the order shown.

N is more basic than O, so NH₂ is the best electron donating group (EDG) and will best stabilize the positive charge in the ring. However, the lone pair electrons on the N in acetanilide are also involved in resonance with the carbonyl group, so they are not as available for stabilization of the ring.

(c) Relative reactivities

The relative reactivities would be

C₆H₅-NH₂ >  C₆H₅-OCH₃ > C₆H₅-NHCOCH₃

4 0
3 years ago
Other questions:
  • A concentration cell is built based on the following half reactions by using two pieces of zinc as electrodes, two Zn2+ solution
    14·1 answer
  • Write the complete and balanced chemical equation for this precipitation reaction. feso4(aq)+ba(oh)2(aq)→
    6·1 answer
  • Tim and Jim finished their lab experiment earlier than their classmates. What should they do while they wait for the others to f
    5·1 answer
  • Calculate the percentage of a solution formed by dissolving 10g of glucose in 240g of water
    13·1 answer
  • which contains the most amount of energy a glass of water at 20C or a glass of water at 80C. EXPLAIN ANSWER
    11·1 answer
  • 2. Energy cost of plasma generation of NO, NO2, and NO3 in air (or air bubble) is about 20 eV per N-atom. 100 W plasma system ha
    6·1 answer
  • If 5.0mL of HC2H30 require 4.96mL of 0.9581 M NaOH to just consume the HC2H302, what is the
    9·1 answer
  • What energy is formed when you put your hands together and rub them up and down rapidly
    6·2 answers
  • Fe + CuCl2 → FeCl2 + Cu
    6·1 answer
  • Explain the geological process that results in the formation of minerals!!
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!