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
aalyn [17]
3 years ago
5

An atom has 5 protons and 7 neutrons. What is its mass number?

Chemistry
2 answers:
VikaD [51]3 years ago
8 0
Mass number = No. of protons + No. of neutrons

= 5 + 7

= 12 u.

Thus, the answer is 12 u.
lisabon 2012 [21]3 years ago
3 0
Mass number = protons + neutrons
mass number = 5 + 7
mass number = 12
You might be interested in
Please Help Me Answer Numbers 7, 9, 10, and 11!
CaHeK987 [17]
Add a 8 kid and u are just adding
5 0
2 years ago
State which statement is a physical change or a chemical change:
Oliga [24]

Answer:

Physical change: A,C ,D, F, H, I

Chemical Change: B, E, G, J, K

4 0
3 years ago
During beta-oxidation of fatty acids, ___________ is produced in peroxisomes but not in mitochondria. A) acetyl-CoA B) FADH 2 C)
stepan [7]

Answer:

The correct option is D

Explanation:

Normally, beta-oxidation of fatty acid occurs in the mitchondrial matrix, however, when the fatty acid chains are too long, the beta-oxidation occurs in the peroxisomes <u>where the oxidation is not attached to ATP synthesis but rather transferred (i.e high energy electrons are transferred) to O₂ to form hydrogen peroxide</u> (H₂O₂). This is the major difference between the beta-oxidation that occurs in the peroxisomes to that which occurs in the mitochondria.

4 0
2 years ago
which of the following correctly identifies the composition of an oxygen atom? A.8 protons, 8 electrons, and 8 neutrons. B.6 pro
Ulleksa [173]
<span>You can answer this question by getting the atomic number and atomic mass of Oxygen from a periodic table. There you will find that the atomic number is 8, that means, by definition, that it has 8 protons. This is, because atomic number is defined as the number of protons of an element. Given that the atom is neutral, that implies that the atoms have the same number of electrons than protons. So you already know that the oxygen atoms has 8 protons and 8 electrons. The number of neutrons can vary, which is what defines the isotopes. Given that the atomic mass of oxygen is 15.999, that means that most atoms of oxygen has 8 neutrons (8 protons +8 neutrons = 16 atomic mass). But you can not be sure that a specific atom of oxygen has 8 neutrons, nevertheless, given that the other options are discarded (because they do not have 8 protons and 8 electrons), the only correct answer is the option A. 8 protons, 8 electrons, and 8 neutrons.</span>
8 0
3 years ago
Read 2 more answers
What is the full form of alcl3​
Likurg_2 [28]

Answer:

Aluminum Chloride

Explanation:

8 0
3 years ago
Other questions:
  • Which statement about the binding of enzymes and substrates is correct? - Substrate molecules fit into the active site of an enz
    11·1 answer
  • 65 m^3 are fed / h of benzene to a reactor, it is requested: to. What is the mass flow fed in kg / h? b. And the molar flow in m
    15·1 answer
  • Please help me with these asap!
    7·1 answer
  • What property of the mixture of gelatin in water tells you that the mixture is not a solution
    11·1 answer
  • Which type of reaction releases the greatest amount of energy per mole of reactant?(1) combustion (2) decomposition (3) nuclear
    13·2 answers
  • Match the following associations. Exothermic or endothermic
    7·1 answer
  • What is the result of the following calculation? Record to the correct number of significant figures. 7.94 g + 0.0132 g = ?
    5·1 answer
  • PLEASE HELP DUE SOON
    8·1 answer
  • 7th grade science help me pleaseee
    6·1 answer
  • a sample of a metal, heated in air, gains mass dm by oxidising at a rate that declines with time t in a parabolic way, meaning t
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!