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
lesantik [10]
3 years ago
6

Help please

Chemistry
1 answer:
Mars2501 [29]3 years ago
6 0

Answer:

electron cloud charge of manganese=-5

Explanation:

atomic number=number of elecron +neutron number

DATA

Neutron NO.=30

atomic NO.=25

e=?

A=e+n

25=e+30

e=25-30

e= -5

You might be interested in
Using this formula, to find K, what does E0 represent?
Marysya12 [62]
The correct answer would be A. The symbol Eo would represent the cell potential of an electrolytic cell. This potential is being created by two metals that possess different properties. The energy per charge that is available from the reaction of the metals is the measure of this potential and is related to the equilibrium constant, K.
6 0
3 years ago
Read 2 more answers
What is the lon # for Beryllium (Be)?
QveST [7]

Answer:

Number: 4

Charge: +2

Element: Beryllium

I hope this helps!! :)

3 0
3 years ago
1. What kinds of metals are REALLY reactive? why?
Olin [163]

Answer:

1. Alkali metals (group 1)

2. halogens (Group 17)

3. noble gasses (group 18)

Explanation:

1. alkali metals only have one valence electron meaning that they really want to lose that one valence electron to get a full octet.

2. halogens have 7 valence electrons meaning that they just need to gain 1 to get a full octet.

3. Nobel gasses already have a full octet meaning that they don't want to react. (atoms only react to get a full octet)

I hope this helps.  Let me know if anything is unclear.

8 0
3 years ago
Find out the reasons why hydrogen is not used as a fuel although it has very high calorific value.
AnnyKZ [126]

Answer:

Although hydrogen has the highest calorific value, it is not used as a domestic fuel. It is because hydrogen is a highly combustible and it reacts explosively when it comes in contact with air. And hence as a result, storing of the hydrogen gas is difficult and is dangerous at the same time.

3 0
3 years ago
Pls anwser (you don’t have to anwser all of them) heeelllpppp
alex41 [277]
Hi! For the first question: this isn’t true. It can’t be done. Animals can’t evolve from other animals.
4 0
3 years ago
Read 2 more answers
Other questions:
  • A popular kitchen appliance
    15·1 answer
  • Balance the following chemical equation, then answer the following question.
    6·1 answer
  • Part a use these data to calculate the heat of hydrogenation of buta-1,3-diene to butane. c4h6(g)+2h2(g)→c4h10(g)
    6·1 answer
  • Which statement is true according to the kinetic theory? Will mark brainliest
    8·1 answer
  • A baby's voice produces sound waves with a higher or lower frequency than a man's?
    9·2 answers
  • Write and balance the equation for the decomposition of aluminum chloride into its elements. phase symbols are optional.
    15·2 answers
  • An aqueous potassium carbonate solution is made by dissolving 5.51 moles of K 2 CO 3 in sufficient water so that the final volum
    12·2 answers
  • Help me pleaseee i don't get it .
    8·1 answer
  • Which of the following statements regarding hydrogen bonding in secondary structures is true? Group of answer choices Both α-hel
    5·1 answer
  • The dissociation of a weak electrolyte is suppressed when
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!