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
lilavasa [31]
3 years ago
10

The mass number of an atom is obtained by totaling the number of _____ and _____.

Chemistry
2 answers:
son4ous [18]3 years ago
8 0
Mass number is the sum of protons and neutrons inside an atom.

Atomic mass = no. of protons + no. of neutrons
Alborosie3 years ago
4 0

the sum of protons and neutrons inside an atom is your answer


You might be interested in
I need a Help plz! It’s my final exam!
LekaFEV [45]
Um i think gold... i think?
7 0
2 years ago
What type of chemical reaction is demonstrated by this equation? A+BX-AX+B
BlackZzzverrR [31]

Answer:

d an acid - base reaction.

Explanation:

3 0
2 years ago
Read 2 more answers
PLSSSSSSSS help !!!!! One mole of an element contains which of the following?
irina [24]

Answer:

6.02 × 10²³ atoms

Explanation:

The number 6.02 × 10²³ is called Avogadro number. It is the number of atoms,  ions and molecules in one gram atoms of an element, one gram ions of substance and one gram molecule of a compound.

For example:

32 g of oxygen = one mole = 6.02 × 10²³  atoms O.

1.008 g of hydrogen = one mole = 6.02 × 10²³  atoms of H.

or

18 g of H₂O =one mole = 6.02 × 10²³  molecules of H₂O

44 g of CO₂ = one mole = 6.02 × 10²³  molecules of CO₂

or

62 g of NO₃⁻ = one mole of NO₃⁻ = 6.02 × 10²³  ions of NO₃⁻

5 0
3 years ago
2. How many mi hr is 30km/s?​
dalvyx [7]

The answer is 67 108.0888km/s.

4 0
3 years ago
How many valence electrons does iron have?
3241004551 [841]
Iron has TWO valence electrons......
4 0
3 years ago
Read 2 more answers
Other questions:
  • Describe the motions of particles in the 3 common states of matter
    12·1 answer
  • Aluminum can react with oxygen gas to produce aluminum oxide (Al¿OÀ). What type of reaction is this?
    9·1 answer
  • What is the job of a scientist?
    8·2 answers
  • Due to a solution's _________, its particles have a harder time evaporating and will remain in solution longer than they would i
    7·1 answer
  • Mechanical waves are classified according to
    9·1 answer
  • Why is bronze preferred in making statue
    15·1 answer
  • Calculate the wavelength, in nanometers, of the light emitted by a hydrogen atom when its electron fallsfrom the n = 7 to the n
    10·1 answer
  • Look at the diagram of a fuel cell used to power a motorized vehicle. A fuel cell with 2 vertical objects labeled A and B connec
    7·2 answers
  • Try the same filtering method with the salt water. What happened? Taste the
    8·2 answers
  • I need help with this! I don't fully understand it
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!