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
Nutka1998 [239]
3 years ago
10

Which of the following is an example of an endothermic process?

Chemistry
1 answer:
KIM [24]3 years ago
7 0
Melting, boiling, and evaporation, in general, are endothermic processes.
You might be interested in
Organize the following list of atoms from lowest to highest Electronegativity:
Anon25 [30]

Answer:

Barium<Strontium<Calcium <Magnesium< Beryllium

Explanation:

Electronegativity is defined as the ability of an atom in a bond to attract the shared electrons of the bond towards itself.

Electronegativity is a periodic trend that decreases down the group and increases across the period.

Hence, if i want to arrange Beryllium, Barium, Strontium, Magnesium, Calcium in order of increasing electronegativity, i will have;

Barium<Strontium<Calcium <Magnesium< Beryllium

5 0
3 years ago
How many nonbonding electron pairs are there in the lewis structure of the peroxide ion, o22−?
Tom [10]
There is 6 non - bonding pairs.
Let me show you one easy method to do this.
o22-, oxygen valence electron = 6 here we have two so total 12, and -2 that means we add electrons so it’s all equal to 14 right.
whenever need to find lone pair, subtract the number you get with the lowest multiple of 8.
here we total 14 valence electron right so lowest multiple of 8 would be 8.
so 14 - 8 = 6 and that is our answer.
Let me know if you have Problem with chemistry.
8 0
3 years ago
Read 2 more answers
An amino acid A, isolated from the acid-catalyzed hydrolysis of a peptide antibiotic, gave a positive ninhydrin test and had a s
Ede4ka [16]
The answer could be 23
7 0
3 years ago
7. Write the equation for the positron emission of barium-127.
ziro4ka [17]

The reaction is given by

\\ \rm\Rrightarrow {}^{127}_{56}Ba\longrightarrow {}^{0}_{+1}\beta+{}^{127}_{55}Cs

Barium goes underneath beta decay to form Ceaseum

  • Cs is very mellable element
  • It can melt on your hand
8 0
2 years ago
open the phase diagram for co2 given in the introduction again. use the phase diagram for co2 in the interactive activity and de
Annette [7]

The phase diagram of CO2 has a melting curve that slopes up and to the right, in contrast to the phase diagram of water, which has a more conventional shape. It is impossible for liquid CO2 to exist at pressures lower than 5.11 atm because the triple point is 5.11 atm and 56.6 °C.

Due to the fact that ice is less thick than liquid water, the phase diagram of water has an odd melting point that drops with pressure. Carbon dioxide cannot exist as a liquid at atmospheric pressure, according to the phase diagram of the gas. Thus, gaseous carbon dioxide directly sublimes from solid carbon dioxide.

Learn more about solid carbon dioxide.

brainly.com/question/16894647

#SPJ4

3 0
1 year ago
Other questions:
  • What is the number of moles of hydrogen that is needed to produce 0.253 mol of water
    15·1 answer
  • 1. What % of the nation's energy is used by the Industrial<br> Sector?
    9·1 answer
  • Edge2020 Need Help
    12·2 answers
  • Technetium has a half-life of six hours. If you obtain 100g of a pure technetium sample, after 18 hours how much of the pure sub
    11·1 answer
  • What is the molar mass of the anhydrous
    15·2 answers
  • Do this and ill do one of your questions
    11·1 answer
  • Can y’all help me with this last bit of my hw? I don’t really understand it and I would really appreciate it if you could help m
    9·1 answer
  • Chlorine has 7 valence electrons. Hydrogen has 1 valence
    9·1 answer
  • How many valence electrons does B on the periodic table have
    15·1 answer
  • Which of the following elements has the highest 1st ionization energy of all the periodic table elements?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!