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
Irina-Kira [14]
3 years ago
12

Explain the general increasing trend in the first

Chemistry
1 answer:
larisa86 [58]3 years ago
5 0

Answer:

The general trend is for ionisation energies to increase across a period. In the whole of period 2, the outer electrons are in 2-level orbitals - 2s or 2p. ... That causes greater attraction between the nucleus and the electrons and so increases the ionisation energies.

Explanation:

The general trend is for ionisation energies to increase across a period. In the whole of period 2, the outer electrons are in 2-level orbitals - 2s or 2p. ... That causes greater attraction between the nucleus and the electrons and so increases the ionisation energies.

You might be interested in
How many grams of a 22.9% sugar solution contain 68.5 g of sugar?
777dan777 [17]

    The grams  of 22.9 %   sugar  solution that contain 68.5  g  of   sugar  is 299.13 g  of  solution  

   <u><em>calculation</em></u>

 22.9%  means that  there are  22.9 g  of  sugar  in 100 g of solution.

   what about   68.5 g  of sugar

- <em>by cross    multiplication</em>

=[(68.5 g  sugar x 100  g  solution) /22.9  g sugar] =299.13 g  of solution

Nb; <em>g sugar cancel  each other</em>

5 0
3 years ago
Which of the following is a reduction half-reaction?
Marta_Voda [28]

Solution : An oxidation reduction (redox) reaction is a type of chemical reaction that involves a transfer of electrons between tow species an oxidaion reductin reaction is any chemical reaction in which the oxidation number of a molecule atom or ion changes by gaining or losing an electron

3 0
3 years ago
How does a chemist count the number of particles in a given number of moles of a substance?
jolli1 [7]
The chemist the count the number of particles (Atoms, Molecules or Formula Unit) in a given number of moles of a substance by using following relationship.

                              Moles  =  # of Particles / 6.022 × 10²³

Or,

                              # of Particles  =  Moles × 6.022 × 10²³

So, from above relation it is found that 1 mole of any substance contains exactly 6.022 × 10²³ particles. Greater the number of moles greater will be the number of particles.
8 0
3 years ago
Transpiration is the process by which ____.<br>​
saul85 [17]

Answer:

Plants add water to the atmosphere

Explanation:

3 0
3 years ago
Read 2 more answers
Solutions with low pH values have which of these properties?
telo118 [61]

Answer:

The correct option is C.

Solutions with low pH values have sour taste.

Explanation:

Low pH value show acidic property which can be define as , -log of conc. of hydrogen ion.

Acid has following properties

  • Sour taste
  • Turn blue litmus into red
  • corrosive

-OH group: Base have OH groups. So it is not correct option so it not correct for low pH i.e. acid

turns litmus paper blue: Base turn red litmus into blue, so it not correct for low pH i.e. acid

feels slippery: Bases are mostly slippery like soap

tastes sour: Sour taste is for acid and bitter taste is for base. So it is correct option for acid

8 0
3 years ago
Read 2 more answers
Other questions:
  • Assume you have 60 micrograms (1 microgram = 10-6 gram) of pure u-238. how many nuclei n0 is this? (recall avogadro's number equ
    8·1 answer
  • Which arrow represents the change of state described
    10·1 answer
  • In which course would a person most likely study these chemical reactions?
    8·2 answers
  • How are electromagnetic waves are measured In three ways
    15·1 answer
  • The hydrogen peroxide solution used on cuts and scrapes is 3%. Stronger solutions can cause chemical burns. If you mistakenly bu
    5·1 answer
  • What are the mountainous parts of the moon called? Question 3 options: craters terrae maria regolith
    12·2 answers
  • What will happen to the Sun in approximately 5.5 billion years?
    12·1 answer
  • Which is a difference between animal populations in primary succession and secondary succession?
    12·2 answers
  • What is the concentration of a solution that is made by diluting 50.0 mL of a 0.40 M NaCl solution to a final volume of 1000.0 m
    10·1 answer
  • If you add sucrose to catalase when testing for reactivity, do you expect to see a reaction?.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!