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
solniwko [45]
3 years ago
14

An atom with 39 protons and a mass number of 89 what is the number of neutrons

Chemistry
1 answer:
Liula [17]3 years ago
4 0

Answer:

50

Explanation:

the number of neutrons is gotten from the subtraction of the number of protons from the mass number

You might be interested in
<img src="https://tex.z-dn.net/?f=I_%7B2%7D" id="TexFormula1" title="I_{2}" alt="I_{2}" align="absmiddle" class="latex-formula">
gogolik [260]

Answer: I2 is the Oxidant; while the 2S2O3(-2) is the reductant.

Explanation:

An Oxidant is any substance that oxidizes, or receives electrons from, another; in so doing, it becomes reduced in oxidation number.

A Reductant thus exactly the opposite.

Note that the equation provided shows that Iodine (I2) received an electron to become NEGATIVELY CHARGED:

I2 --> 2I-.

The oxidation number reduced from 0 to -1.

In contrast, the oxidation number of 2S2O3(-2) increases from -4 to -2.

Thus, I2 is the Oxidant; while the 2S2O3(-2) is the reductant.

7 0
3 years ago
Which would most likely result in low oxygen levels in the blood?
lidiya [134]

Answer:

the person recieving low oxygen by haveing trouble breathing

Explanation:

5 0
3 years ago
Two examples of organic chemical
spayn [35]

Answer:

there are literally millions - alkanes, alkenes, alkynes, alcohols, esters, carboxylic acids... to name but a few.

Explanation:

6 0
3 years ago
In which layer of the ocean do surface currents flow?
Marat540 [252]

Answer:

ooh sorry, but will this help you now:

Ocean dynamics define and describe the motion of water within the oceans. Ocean temperature and motion fields can be separated into three distinct layers: mixed (surface) layer, upper ocean (above the thermocline), and deep ocean. Ocean currents are measured in sverdrup (sv), where 1 sv is equivalent to a volume flow rate of 1,000,000 m (35,000,000 cu ft) per second.

Surface currents, which make up only 8% of all water in the ocean, are generally restricted to the upper 4…

Explanation:

Hope this helps :)

8 0
3 years ago
Calculate the following:<br><br><br>[6.6 x <img src="https://tex.z-dn.net/?f=10%5E%7B-2%7D" id="TexFormula1" title="10^{-2}" alt
anyanavicka [17]
0.066-0.0069= 0.0591
4 0
2 years ago
Other questions:
  • The process by which atoms or molecules leave a liquid and become a gas at a temperature below the boiling point is called:
    7·1 answer
  • During heating of the hydrate, loss due to splattering can cause a serious error. if a significant amount of sample is lost, wil
    9·1 answer
  • What does the R stand for in the ideal gas law (PV=nRT)?
    8·1 answer
  • An object moves +4 m/s for one minute. Then it turns around and moves -4 m/s. What had to change during the time the object reve
    9·2 answers
  • Carbon monoxide and chlorine gas react to form phosgene:
    13·1 answer
  • Which of the following equilibria could be used to support the claim that the addition of a small amount of NaOH to the buffer w
    14·1 answer
  • BRAINLIEST IF ANSWERED CORRECTLY WITH EXPLANATION! HELP PLEASE:)
    15·1 answer
  • Star_____ has the greatest absolute brightness ​
    15·1 answer
  • How many grams of NaCl can be dissolved in 100 grams of water at 70°C? What is its concentration? (20 pts.)
    5·2 answers
  • What is needed for photosynthesis to take place? (Select all that apply.)
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!