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
deff fn [24]
4 years ago
13

How many protons (p) and neutrons (n) are in an atom of sr? 38 p, 90 n 90 p, 38 n 38 p, 52 n 52 p, 38 n?

Chemistry
1 answer:
harina [27]4 years ago
3 0
Sr will always have 38 protons because that is its atomic number. Normally Sr has 38 protons and 49 neutrons yielding an atomic mass of 87. unless you are dealing with an isotope of Strontium in which 3 additional neutrons would give you the 53 neutrons in your answer, (38p, 52n).
You might be interested in
What is the pH of a 0.028M solution (pH= -log(M))<br><br> A) 3.56<br> B) 2.88<br> C) 1.55<br> D) 1
kupik [55]

Answer:

1.55

Explanation:

-log(M)=pH

- Hope that helps! Please let me know if you need further explanation.

4 0
3 years ago
A student designed an experiment to test the effect on the magnitude of the magnetic field that is generated around the wire loo
kykrilka [37]

Answer: C ) the student’s dependent variable is the magnitude of the magnetic field that is generated

E ) the student’s independent variable is the amount of current that is being passed through the wire

5 0
3 years ago
Which phase transition, solid to liquid or liquid to gas, results in the largest increase in entropy
Licemer1 [7]

The liquid to gas phase transition results in the largest increase in entropy.

<h3>What is Entropy?</h3>
  • Entropy is a measureable physical characteristic and a scientific notion that is frequently connected to a condition of disorder, unpredictability, or uncertainty.
  • From classical thermodynamics, where it was originally recognized, through the microscopic description of nature in statistical physics, to the fundamentals of information theory, the phrase and concept are utilized in a variety of disciplines.
  • It has numerous applications in physics and chemistry, biological systems and how they relate to life, cosmology, economics, sociology, weather science, and information systems, especially the exchange of information.
  • Entropy has the effect of making some processes impossible or irreversible, in addition to the necessity that they not go against the first law of thermodynamics, which is the conservation of energy.

To learn more about entropy with the given link

brainly.com/question/13146879

#SPJ4

7 0
2 years ago
1.
natta225 [31]
The Moon completes one orbit around the Earth in approximately 27 1/3 days and completes one cycle of its phases in approximately 29 1/2 days. The correct option among all the options that are given in the question is the second option. I hope that this is the answer that has come to your great help.
4 0
3 years ago
Which of the following is most likely to be covalent?<br> MgO <br> CO <br> CaO <br> BaO
Kisachek [45]

Answer:

CaO

Explanation:

CaO is the only compound that is a non-metal and a non-metal. The rest of the compounds are ionic, or metal and non-metal.

8 0
3 years ago
Other questions:
  • The energy of a particular color of green light is 3.81×10-22 kJ/photon. The wavelength of this light is nanometers
    5·1 answer
  • Which compound is most likely to contain ionic bonds? which compound is most likely to contain ionic bonds? mgf2 ch4 n2o?
    9·1 answer
  • When an atom loses one or more electrons, this atom becomes a
    9·2 answers
  • For an aqueous solution of hf, determine the van't hoff factor assuming 0% and 100% ionization, respectively. a solution is made
    5·1 answer
  • An object has a mass of 15.2 g and a volume of 8.9 mL. <br> What is the density of the object?
    8·1 answer
  • What would happen if HF were added to water?
    5·1 answer
  • An ice wedge shattering a slab of shale<br><br> a<br> Chemical Change<br> b<br> Physical Change
    8·1 answer
  • Aquafers are bodies of water found above ground with thriving ecosystems.<br> O True<br> O False
    13·1 answer
  • What number balances the equations?!
    14·1 answer
  • How can we increase the rate of collisions between the reactants in this reaction? mg 2hcl → mgcl2 h2
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!