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
What kind of solution would have a Kb value much greater than 1?
Marta_Voda [28]

Answer:

B. a strongly basic solution

Explanation:

Kb is base dissociation constant, which indicates how completely a base dissociates into its component ions in water. The greater the Kb value, the greater the alkalinity of the solution and vice versa.

Therefore, a solution with a Kb value much greater than 1, indicates a strongly basic solution, while a solution with a Kb value less than 1, indicates a weakly basic solution.

8 0
3 years ago
Why can you never see the far side of the mood from earth?
Yuliya22 [10]

Answer: -

C) because the moon rotates once on its axis in the same time that it takes to revolve around the earth

Explanation: -

The moon rotates about it's axis one full time at about the same time as it takes to rotate around the earth.

This leads to only one side of the moon always appearing to Earth, called the near side.

One side of the moon is always not seen from the earth. It is called the far side of the moon.

Thus we can never see the far side of the moon because the moon rotates once on its axis in the same time that it takes to revolve around the earth

4 0
3 years ago
What is the name of the structures that help move substances across a tract surface?
dimaraw [331]

Answer:

cilia and flagella

Explanation:

In prokaryotic species , cilia are present , and in eukaryotic species , flagella is present .

Cilia and flagella both have same function , i.e. , to enable the movement of the cell , along with the movement of some substance and direct the flow of these substance along the tracts.

Cilia and flagella are composed of basal bodies.

Hence , from the given statement of the question,

The correct term is cilia and flagella .

4 0
3 years ago
A museum is creating an exhibit about cells. Which type of exhibit would best explain what cells are? A. Display a three-dimensi
SpyIntel [72]
Considering you should look and not touch in museums... A.
8 0
3 years ago
Read 2 more answers
1.875mps into kilometers per hour​
worty [1.4K]

Answer:

6,75 kilometres per hour

6 0
3 years ago
Other questions:
  • How many ammonium ions and how many sulfate ions are present in an 0.250 mol sample of (nh42so4?
    15·1 answer
  • Which step in naming unsaturated hydrocarbons is used for alkenes but not alkynes?
    13·2 answers
  • Where are stars more likely to collide?
    7·1 answer
  • In a molecule of chlorine (Cl2), the chlorine atoms are connected to each other by a single bond. Which statements correctly des
    12·1 answer
  • Inside a volcano how do the slanted layers of hardened lava get there
    8·1 answer
  • Convert the pressure 525.4 torr to kPa.
    12·2 answers
  • Explain the following observation. Treatment of alkyl chloride A with NaOCH2CH3 yields only one product B, whereas treatment of
    6·1 answer
  • A galvanic cell whose cell reaction is 2Fe3+(aq) + Zn(s) → 2Fe2+(aq) + Zn2+(aq) has a cell potential of 0.72V. What is the maxim
    7·1 answer
  • Based on the grammar and language of the poster why is it surprising that Tubman is referred to illiterate
    10·1 answer
  • 73.5 mol of P4O10 contains how many moles of P ? moles of P:
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!