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
Natasha_Volkova [10]
2 years ago
13

I NEED HELP ASAP!!!!!!!!!!!! WITHIN THE HOUR Thanks

Chemistry
1 answer:
marta [7]2 years ago
7 0

Answer:

A. O, S, Se

Explanation:

They are all considered "other nonmetals," found in row 16 of the periodic table, and are chalcogens. The other options don't have as much in common.

You might be interested in
Draw the Lewis structures for CH3OH, CH2O and HCOOH. Indicate the hybrid orbital used in the sigma bonds for each of the carbon
sdas [7]

Answer:

See figure 1

Explanation:

For this question, we have to remember that in the lewis structures all atoms must have<u> 8 electrons</u>. And each atom would have a different value of <u>valence electrons</u>:

Carbon => 4

Oxygen=> 6

Hydrogen=> 1

Additionally, for the <u>hybridizations</u> we have to remember that:

Sp^3=> 4 single bonds

Sp^2=> 1 double bond

Sp^1=> 1 double bond

With this in mind, the formaldehyde and formic acid would have Sp^2 carbons and the ethanol an Sp^3 carbon.

Finally, for the oxidation state. We have to remember that <u>if we have more bonds with oxygen, we will have more oxidation</u>. Therefore, the carbon that has more oxidation is the one in the formic acid (we have several bonds with oxygen).

See figure 1

I hope it helps!

4 0
3 years ago
What is the value of the temp 15 degrees Celsius in degree kelvin
dybincka [34]
Just add 273 to it. u'll get 288 kelvin =)
8 0
3 years ago
Which type of rock forms as a result of cooling and crystallization?
allochka39001 [22]
Igneous <span>rock ! Of course oh how i miss middle school.........</span>
5 0
4 years ago
Read 2 more answers
A gas is collected in a 34.3L container at a temperature of 31.5°C. Later, the container has a volume of 29.2L, a temperature of
goldenfox [79]

Answer:

108 kPa  

Step-by-step explanation:

To solve this problem, we can use the <em>Combined Gas Laws</em>:

p₁V₁/T₁ = p₂V₂/T₂             Multiply each side by T₁

   p₁V₁ = p₂V₂ × T₁/T₂      Divide each side by V₁

      p₁ = p₂ × V₂/V₁ × T₁/T₂

Data:

p₁ = ?;                 V₁ = 34.3 L; T₁ = 31.5 °C

p₂ = 122.2 kPa; V₂ = 29.2 L; T₂ = 21.0 °C

Calculations:

(a) Convert temperatures to <em>kelvins </em>

T₁ = (31.5 + 273.15) K = 304.65 K

T₂ = (21.0 + 273.15) K = 294.15 K

(b) Calculate the <em>pressure </em>

p₁ = 122.2 kPa × (29.2/34.3) × (304.65/294.15)  

   = 122.2 kPa × 0.8542 × 1.0357

   = 108 kPa

4 0
3 years ago
When drawing a Bohr model for Sulfur, how many energy levels will you
grandymaker [24]

Answer:

3

Explanation:

2,8,6

4 0
3 years ago
Other questions:
  • Compound x is converted to elements a and<br> b. compound x has undergone a _____ reaction.
    10·1 answer
  • How many moles are in 1.2×10^3 grams of ammonia
    8·1 answer
  • Iron metal reacts with oxygen to produce iron(III) oxide. If you have 12.0 moles of iron for complete reaction, you need(can som
    13·1 answer
  • Approximately, how many days does it take for an insect to grow from an egg to an adult?
    13·2 answers
  • The reaction is proceeding at a rate of 0.0080 Ms-1 in 50.0 mL of solution in a system with unknown concentrations of A and B. W
    5·1 answer
  • What happens when zinc carbonate is calcined?
    7·1 answer
  • State the general relationship between temperature of the water and the amount of the salt that will dissolve in the water
    6·1 answer
  • 5) Which of the following acids will fully dissociate when in solution and would be the strongest
    9·1 answer
  • What 3 objects produce gamma rays in space?
    7·1 answer
  • Draw conclusion: The density of water is 1.0 g/mL, or 1.0 g/cm². Look at the data in your table. How can you use the density of
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!