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
melamori03 [73]
3 years ago
9

How many valence electrons does each of the following atoms have?

Chemistry
1 answer:
Zolol [24]3 years ago
6 0
Which atoms?  ~~~~~~~~~~~~~~~~~~~~~~~~~`
You might be interested in
NEED HELPPP PLSSSSSSSSSS
Leto [7]
I would pick the first option in the third option
4 0
3 years ago
What is the name of this compound?
Mashcka [7]

Answer:

B. ethylamine.

Explanation:

  • Since the compound contains NH₂, it is an amine compound.
  • The alkyl group C₂H₅- contains 2 C atoms (ethyl group).

<em>So, the compound is ethylamine.</em>

<em />

3 0
3 years ago
Read 2 more answers
Can you help me on #14 - #16?
gtnhenbr [62]
15 is b 16 is b and im working on 14

6 0
3 years ago
An atom has 20 electrons. Find out
Yanka [14]

Answer:

it's atomic number is 5 and total number is 10

8 0
2 years ago
student has calibrated his/her calorimeter and finds the heat capacity to be 14.2 J/°C. S/he then determines the molar heat capa
nika2105 [10]

Answer:

24.03 J/mol.ºC

Explanation:

For a calorimeter, the heat lost must be equal to the heat gained from water plus the heat gained from calorimeter, which has the same initial temperature as the water.

-Qal = Qw + Qc (minus signal represents that the heat is lost)

-mal*Cal*ΔTal = mw*Cw*ΔTw + Cc*ΔTc

Where m is the mass, C is the specific heat, ΔT is the temperature variation, al is from aluminum. w from water and c from the calorimeter. Cw = 4.186 J/gºC

-25.5*Cal*(22.7 - 100) = 99.0*4.186*(22.7 - 18.6) + 14.2*(22.7 - 18.6)

1971.15Cal = 1699.10 + 58.22

1971.15Cal = 1757.32

Cal = 0.89 J/g.ºC

The molar mass of Al is 27 g/mol

Cal = 0.89 J/g.ºC * 27 g/mol

Cal = 24.03 J/mol.ºC

6 0
3 years ago
Other questions:
  • Choose a likely identity for X, Y, and Z in these structures. A central X atom is bonded to two chlorine atoms through single bo
    12·1 answer
  • The force of a gas's outward push divided by the area of the walls of the container is the gas's
    15·2 answers
  • A characteristic of a pure substance that can be observed without
    14·1 answer
  • CAN SOMEONE HELP PLEASE!!!!!!!!!!!!!!!!!!!!!
    9·1 answer
  • What bsic difference is between NMR and MS spectroscopic techniques?​
    12·1 answer
  • What is the percent mass oxygen in calcium carbonate (CaCo3)?
    15·2 answers
  • (Pls help i will give brainlyest) Label the missing parts of the diagram.
    13·1 answer
  • Pls answer with a passion and a goal of smartness
    15·2 answers
  • 76.5 scientific notation
    5·1 answer
  • Which is not involved in a chemical reaction?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!