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
stiks02 [169]
3 years ago
11

The Lewis structure of an oxygen atom should have _____________ dots drawn around the symbol .The Lewis structure of a calcium a

tom should have ____________ dots drawn around the symbol Ca. The Lewis structure of a nitrogen atom should have ___________ dots drawn around the symbol N. The Lewis structure of an aluminum atom should have ___________ dots drawn around the symbol Al. The Lewis structure of a fluorine atom should have _________ dots drawn around the symbol F.
Chemistry
1 answer:
nydimaria [60]3 years ago
4 0

Answer:

Oxygen- 6

Calcium-2

Nitrogen-5

Aluminum-3

Flourine-7

Explanation:

A Lewis structure or dot electron structure is a representation of an atom in which the valence electrons on the outermost shell of the atom are represented as dots.

These dots show the number of valence electrons as well as the group to which the atom belongs in the periodic table.

You might be interested in
What is the molality of a solution of water and KCl if the freezing point of the solution is –3°C? (Kf = 1.86°C/m; molar mass of
Elina [12.6K]
Some of the solutions exhibit colligative properties. These properties depend on the amount of solute dissolved in a solvent. These properties include freezing point depression, boiling point elevation, osmotic pressure and vapor pressure lowering. Calculations are as follows:

<span> ΔT(freezing point)  = (Kf)mi
3  = 1.86 °C kg / mol (m)(2)
3 =3.72m
m = 0.81 mol/kg</span>

4 0
3 years ago
Read 2 more answers
135 grams of sodium has ______ moles.<br><br> (Enter just the number for this one.)
just olya [345]

Answer : 135 grams of sodium has 5.869 moles.

Solution : Given,

Mass of sodium = 135 grams

Molar mass of sodium = 23 g/mole

Formula used :

\text{Moles of sodium}=\frac{\text{Mass of sodium}}{\text{Molar mass of sodium}}

Now put all the given values in this formula, we get

\text{Moles of sodium}=\frac{135g}{23g/mole}=5.869moles

Therefore, the moles of sodium present in 135 grams of sodium is, 5.869 moles.


6 0
3 years ago
Joshua hooks a rubber band between his thumb and forefinger. He moves his fingers apart, stretching the rubber band. With a quic
Gnoma [55]
<span>The elastic potential energy stored in the stretched rubber band changes to kinetic energy.</span>
5 0
3 years ago
Read 2 more answers
A mole is the amount of a substance that contains as many particles as the number of atoms in 12 grams of what isotope?
ioda
The <span>12C</span><span> isotope.  Hope this helps.</span>
3 0
3 years ago
Ca3(PO4)2 + 2 H2SO4 = 2 CaSO 4 +Ca(H2PO4)2 is this balanced or unbalanced
ale4655 [162]

yes, it is balanced.

3 0
2 years ago
Other questions:
  • Is putting food coloring in water a chemical change?
    11·1 answer
  • You mix a blue and a clear liquid together and they turn bright green. Has a chemical reaction occurred?
    14·2 answers
  • A reaction generates hydrogen gas (H) as a product. The re-
    7·1 answer
  • What is the mass of 87.94 mL of ethanol, which has a density of 0.79 g/mL?
    14·1 answer
  • I need help with problem 103 all of the questions.
    13·1 answer
  • What is an example of a neutralization reaction?
    15·1 answer
  • Ciara’s bike has rusted, which means that the iron in the metal changed to rust.
    10·2 answers
  • 3. Explain why scientists use models to study atoms.
    12·1 answer
  • What pressure will be exerted by 0.57 moles of CO2 at a temperature of 25°C and a volume of 500 ML? _____atm
    15·1 answer
  • 4. One gram of of ............... contains one type of atoms. a. iron b. ammonia c. hydrogen chloride d. water​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!