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
Ainat [17]
3 years ago
7

What’s the atomic number of an atom that has 20 protons and 20 neutrons

Chemistry
1 answer:
baherus [9]3 years ago
8 0

Answer:

20

Explanation:

The atomic number is equal to the amount of protons in the atomic nucleus.

You might be interested in
An unknown solution turned red litmus paper red, turned blue litmus paper blue, and didn’t conduct electricity. The solution is
goblinko [34]

Answer:

Option C. Neutral

Explanation:

A solution that does not change the colour of litmus paper is a neutral solution. Thus, the solution does not conduct electricity because there is no free ions in the solution

8 0
3 years ago
Read 2 more answers
A Lewis structure is a two-dimensional representation of a molecule that does not necessarily show what shape that molecule woul
Dmitry [639]

Complete Question

The complete question is shown on the first uploaded image

Answer:

The bond angle is 104.48⁰

Explanation:

The explanation is shown on the second uploaded image

4 0
3 years ago
Does ice particles have high interparticle force of attraction? Justify your answer.<br> please and
Schach [20]

Answer:

¿Las partículas de hielo tienen una alta fuerza de atracción entre partículas? Justifica tu respuesta

Explanation:

Dichos contenidos están presentes en los currículos de Física y Química de la educación básica, con independencia del marco legal, pues introducen al alumno en el conocimiento químico de la materia. Aunque la teoría cinética molecular obvia la composición atómica de las partículas, no deja de ser un contenido deseable para introducir a los alumnos en el mundo de la química pues permite diferenciar y establecer relaciones entre los niveles macro, micro y simbólico de la materia.

8 0
3 years ago
Which gas is produced when dilute hydrochloric acid is added to a reactive metal.
Digiron [165]

Hydrogen gas is produced when dilute hydrochloric acid is added to a reactive metal.

Balanced molecular equation of sodim metal with hydrochloric acid:

2Na(s) + 2HCl(aq) → 2NaCl(aq) + H₂(g).

Ionic equation: 2Na(s) + 2H⁺(aq) + 2Cl⁻(aq) → 2Na⁺ + 2Cl⁻(aq) + H₂(g).

Net ionic equation: 2Na(s) + 2H⁺(aq) → 2Na⁺(aq) + H₂(g).

Sodium is oxidized from oxidation number 0 (Na) to oxidation number +1, hydrogen is reduced from oxidation number +1 to oxidation number 0 (hydrogen gas H₂).

Another example:

Balanced chemical equation: Zn(s) + 2HCl(aq) → ZnCl₂(aq) + H₂(g)

Word equation: zinc + hydrochloric acid → zinc chloride + hydrogen gas

More about hydrogen gas:brainly.com/question/24433860

#SPJ4

7 0
2 years ago
Which of the following is not part of protozoa?
Serga [27]

Answer: A. Cilla Is Correct.

4 0
4 years ago
Other questions:
  • If you have a electromagnet how many it’s magnetic field stronger
    12·1 answer
  • What is used to kill cavities
    12·1 answer
  • The half-life of the carbon isotope C-14 is approximately 5,715 years. What percent of a given amount remains after 300 years? R
    10·1 answer
  • 6. The variable that a scientist changes on purpose to test a hypothesis is the
    5·1 answer
  • The reaction A2 + 2 B → 2 BA is thought to occur by the following mechanism:
    11·1 answer
  • How does temperature affect the rate of photosynthesis?
    6·1 answer
  • Which of the following electron configurations for neutral atoms is correct?
    7·1 answer
  • . A compound contains nitrogen and oxygen in the mole ratio of 1:1. Which of the
    14·1 answer
  • When combined in the correct ratio, hydrogen and oxygen atoms can form water as show
    7·1 answer
  • I What<br>What is ment by<br>ment by covalency?​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!