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
gregori [183]
3 years ago
7

On a camping trip, Marta roasts a marshmallow in the campfire. The marshmallow grows, and then turns black.

Chemistry
2 answers:
Setler [38]3 years ago
6 0

Answer

D

Explanation:

Mandarinka [93]3 years ago
4 0

Answer:

The answer is D.

Explanation:

You might be interested in
Which chemical class does phenobarbital belong to?
drek231 [11]
<span>Phenobarbital is derivative of Barbituric Acid and Barbituric Acid is derivative of Urea. (structures shown in Fig below)

Urea has H</span>₂N- group attached to Carbonyl Group (C=O), and such class of comounds conataining H₂N-C=O bond are called as Amides.

Result:
          So, <span>Phenobarbital belongs to Amides.</span>

3 0
3 years ago
Which question would be scientifically reasonable for a student to ask about the layers of the Earth?
lubasha [3.4K]

Answer:

The answer is C

Explanation:

5 0
3 years ago
Which material is very strong and tough but shows very little elongation as it absorbs energy?
natita [175]
Kevlar would be the answer!! enjoy the rest of your day broskies!!!
7 0
3 years ago
A sample of gaseous neon atoms at atmospheric pressure and 0 °c contains 2.69 * 1022 atoms per liter. the atomic radius of neon
omeli [17]

Explanation

Radius of neon atom : 69 pm = 69\times 10^{-12} m

Volume occupied by the one atom:\frac{4}{3}\pi r^3

=\frac{4}{3}\times 3.14\times(69\times 10^{-12} m)^3=1.37\times 10^{-30} m^3

given that 2.69\times 10^{22} atoms are present in 1L

1 L = 0.001 m^3

The volume occupied by the 2.69\times 10^{22} neon atoms

2.69\times 10^{22}\times 1.37\times 10^{-30} m^3=3.68\times 10^{-8} m^3

Fraction of volume occupied by the neon atom:

=\frac{3.68\times 10^{-8} m^3}{0.001 m^3}=3.68\times 10^{-11} m^3

3.68\times 10^{-11} m^3

The fraction of of volume occupied by the neon atom is very less than the 1 L which indicates the presence of large amount of empty space between the atoms of the gas.

3 0
3 years ago
Metals react by what electrons?
fomenos

Answer:

valence electrons

Explanation:

5 0
3 years ago
Other questions:
  • What approximate percentage of the Earth’s freshwater is groundwater?
    15·2 answers
  • What was one of the original reasons the government had for creating the internet
    12·1 answer
  • I know this isn't the subject of math, but nobody can answer it in math and I need help with the steps because I need to turn it
    15·1 answer
  • 4 NH3 + 6 NO → 5 N2 + 6 H2O How many moles of NH3 are necessary to produce 0.824 mol N2?
    14·1 answer
  • What are the chemical reactions of a burning candle?
    15·1 answer
  • A weight of 0.27 kilogram is<br> 1. 0.00027 mg<br> 2. 270 mg<br> 3. 27 mg<br> 4. 2.7 × 105 mg
    9·1 answer
  • What happens to the pressure if the gas volume is cut in half while n and I are<br> held constant?
    12·1 answer
  • The temperature of a sample of gas in steel container at 30.3 Atm is
    6·2 answers
  • g Using Newman projections, draw the most stable conformation for each of the following compounds. (a) 3-methyl pentane, viewed
    5·1 answer
  • What kinds of things can we learn by studying atoms?​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!