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
Strike441 [17]
3 years ago
11

As an ice cube melts on a table top it transforms from a solid bank with a defined shape to a puddle with a much greater ability

to flow. Thinking at a molecular level what causes this change to occur be sure to discuss the kinetic energy of particles in your answer.
Chemistry
1 answer:
jeka943 years ago
5 0
In a solid state, the molecules have the least amount of energy. They just stick close together and vibrate in place. As the molecules gain more energy, they are able to move around more freely. In the liquid state, the molecules have enough energy to sort of tumble over each other.
You might be interested in
How old were you when u got your first kiss? if you still haven't gotten it how old are you now?
goldfiish [28.3K]

Answer:

I havent kiss anyone

Explanation:

cuz most men are butts

7 0
3 years ago
Read 2 more answers
Who discovered the flame test
Genrish500 [490]

Answer:

Thomas Melvill

Explanation:

...

6 0
3 years ago
If a molecule diffusing through extracellular fluid travels 1 mm in 1 sec, how long will it take that molecule to diffuse 1 cm
hichkok12 [17]
Given that the rate of diffusion is 1 mm per 1 second. then the time it travels in 1 cm can be solve using the formula
t = d / r
where d is the distance
r is the rate

first, 1 cm is equal to 10 mm

t = 10 mm / ( 1 mm / s )
t = 10 s
4 0
3 years ago
Problem PageQuestion The airbags that protect people in car crashes are inflated by the extremely rapid decomposition of sodium
Shalnov [3]

Answer:

1. 2NaN₃(s) → 2Na(s) + 3N₂(g)

2. 14.5 g NaN₃

Explanation:

The answer is incomplete, as it is missing the required values to solve the problem. An internet search shows me these values for this question. Keep in mind that if your values are different your result will be different as well, but the solving methodology won't change.

" The airbags that protect people in car crashes are inflated by the extremely rapid decomposition of sodium azide, which produces large volumes of nitrogen gas. 1. Write a balanced chemical equation, including physical state symbols, for the decomposition of solid sodium azide (NaN₃) into solid sodium and gaseous dinitrogen. 2. Suppose 71.0 L of dinitrogen gas are produced by this reaction, at a temperature of 16.0 °C and pressure of exactly 1 atm. Calculate the mass of sodium azide that must have reacted. Round your answer to 3 significant digits. "

1. The <u>reaction that takes place is</u>:

  • 2NaN₃(s) → 2Na(s) + 3N₂(g)

2. We use PV=nRT to <u>calculate the moles of N₂ that were produced</u>.

P = 1 atm

V = 71.0 L

n = ?

T = 16.0 °C ⇒ 16.0 + 273.16 = 289.16 K

  • 1 atm * 71.0 L = n * 0.082 atm·L·mol⁻¹·K⁻¹ * 289.16 K
  • n = 0.334 mol

Now we <u>convert N₂ moles to NaN₃ moles</u>:

  • 0.334 mol N₂ * \frac{2molNaN_{3}}{3molN_2} = 0.223 mol NaN₃

Finally we <u>convert NaN₃ moles to grams</u>, using its molar mass:

  • 0.223 mol NaN₃ * 65 g/mol = 14.5 g NaN₃

6 0
3 years ago
Which change is likely to happen to an atom of the element strontium (Sr) during bonding?
iren [92.7K]

Answer: <em>it will give up electrons forming a positive ion</em>

Explanation:

8 0
2 years ago
Read 2 more answers
Other questions:
  • A 250mL sample of air at STP contains approximately 52.5mL of O2. What is the percentage of oxygen in the air
    6·1 answer
  • Describe a main goal of secondary treatment in a modern sewage treatment plant.
    8·2 answers
  • For the reactionN2(g)+O2(g)?2NO(g)classify each of the following actions by whether it causes a leftward shift, a rightward shif
    15·1 answer
  • What is the final chemical equation from the following intermediate chemical equations?
    12·1 answer
  • What properties differentiate an ionically bonded compound from a covalently bonded compound
    13·1 answer
  • In the United States, which assessment system measures inflation?
    13·1 answer
  • True or false: Bases are commonly used as cleaning products because they can dissolve grease.
    10·2 answers
  • HELP I NEED THIS NOW AND FAST PLEASE
    15·1 answer
  • 4.0 moles of H2O would have what mass?
    11·2 answers
  • Is a neutral particle a nucleus or electron cloud
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!