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
Kryger [21]
3 years ago
15

Why are valence electrons important?

Chemistry
2 answers:
Usimov [2.4K]3 years ago
5 0
They are the outer layer of the electron layers.
frosja888 [35]3 years ago
5 0
They are intrinsically unstable and participate in chemical reactions
You might be interested in
I have a mixture of rocks,
Yuki888 [10]

The Rocks have remained on top of the screen, while the sand and water have passed through it.

5 0
3 years ago
Read 2 more answers
How many moles are in 1.5 x 10^20 molecules of NH3?
Keith_Richards [23]
<span>Because the question is asking moles of NH3, the compound, any subscripts are irrelevant. It only wants to know how many moles of NH3 molecules, not individual atoms.

Therefore, we can simply convert to moles. 1.5x10^23/6.022x10^23 = .249 moles of NH3.

(If it were to ask moles of Hydrogen, for example, you would multiply the answer by 3, because there are 3 atoms of Hydrogen per one molecule of NH3. But this only asks for moles of the entire compound).  

hope you have a great day! :)
</span>
5 0
3 years ago
What is saturated solution and how it is prepared
Dimas [21]
Hope my answer helped you
5 0
3 years ago
What volume unit is greater than one liter
svetlana [45]
Kiloliters and megaliters
4 0
3 years ago
Calculate the energy required to melt 21 g of ice at 0 oC.
vladimir1956 [14]

<u>We are given:</u>

Mass of ice = 21 grams

The ice is already at 0°c, the temperature at which it melts to form water

Molar heat of fusion of Ice = 6.02 kJ/mol

<u>Finding the energy required:</u>

<u>Number of moles of Ice: </u>

Molar mass of water = 18 g/mol

Number of moles = given mass/ molar mass

Number of moles = 21 / 18 = 7/6 moles

<u>Energy required to melt the given amount of ice:</u>

Energy = number of moles * molar heat of fusion

Energy = (7/6) * (6.02)

Energy = 7.02 kJ OR 7020 joules

7 0
3 years ago
Other questions:
  • This type of triglyceride contains more than one double bond in the fatty acid carbon atoms
    15·1 answer
  • Sediment is a rock material that forms where rocks and broken down into smaller pieces or ____ in water as rocks erode.
    15·1 answer
  • How many moles of potassium bromide (KBr) are in 97.569 grams? *
    12·1 answer
  • Which of the following formulas is used to determine the pH of a solution?
    12·1 answer
  • Magnesium +Hydrogen Phospahate
    12·2 answers
  • If 28 grams of N reacts completely with 12 grams of H2, then how many grams of NH6 will you end up with? ___________ grams
    5·2 answers
  • ( QUESTION) Physical properties are-
    15·1 answer
  • How can a chemical reaction be sped up? Select from the drop-down menu to correctly complete the statement. Add a Choose... that
    8·1 answer
  • Please answer I will give you brainliest!!
    14·1 answer
  • Nancy learned in school that composting is a way to cycle nutrients, and as tiny ecosystems, composting requires biotic and abio
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!