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
Zigmanuir [339]
2 years ago
5

Okay I know that is a physical change but like someone can you please explain to me how is it physical change.

Chemistry
2 answers:
Lena [83]2 years ago
5 0

Answer:

That is the answer

Explanation:

Yakvenalex [24]2 years ago
4 0

Answer:

It is a physical change because it is still food and made up of the same things, just in smaller pieces and ground up.

You might be interested in
Cierta cantidad de hidrogeno esta encerrada en una camara de platino a volumen constante. Cuando la camara se sumerge en un baño
salantis [7]

Answer:

-245.7°C es la temperatura del gas bajo 100 torr

Explanation:

Para resolver esta pregunta debemos hacer uso de la ley de Boyle que establece que la presión de un gas es directamente proporcional a la temperatura de este cuando el volumen permanece constante. La ecuación es:

P1T2 = P2T1

<em>Donde P es presión y T temperatura absoluta del estado inicial, 1, y final, 2.</em>

<em />

Reemplazando:

P1 = 1000torr

T2 = ? -Incógnita-

P2 = 100torr

T1 = 273K -Temperatura del hielo fundido = 0°C = 273K

1000torrT2 = 100torr273

T2 = 27.3K

27.3K - 273 =

<h3>-245.7°C es la temperatura del gas bajo 100 torr</h3>

<em />

3 0
2 years ago
A lead mass is heated and placed in a foam cup calorimeter containing 40.0 mL of water at 17.0°C. The water reaches a temperatur
lbvjy [14]

Answer: 502 Joules

Explanation:

To calculate the mass of water, we use the equation:

\text{Density of substance}=\frac{\text{Mass of substance}}{\text{Volume of substance}}

Density of water = 1 g/mL

Volume of water = 40.0 mL

Putting values in above equation, we get:

1g/mL=\frac{\text{Mass of water}}{40.0mL}\\\\\text{Mass of water}=(1g/mL\times 40.0mL)=40.0g

When metal is dipped in water, the amount of heat released by lead will be equal to the amount of heat absorbed by water.

Heat_{\text{absorbed}}=Heat_{\text{released}}

The equation used to calculate heat released or absorbed follows:

q=m\times c\times \Delta T

q = heat absorbed by water

m = mass of water = 40.0 g

T_{final} = final temperature of water = 20.0°C

T_{initial = initial temperature of water = 17.0°C

c = specific heat of water= 4.186 J/g°C

Putting values in equation 1, we get:

q=40.0\times 4.186\times (20.0-17.0)]

q=502J

Hence, the joules of heat were re-leased by the lead is 502

5 0
3 years ago
How was the modern understanding of the atom developed?
Zepler [3.9K]

Answer:

The modern understanding of an atom was developed by the quantum theory

8 0
3 years ago
What happens to energy when methane increases?
Zanzabum

Answer:

How does methane gas affect the environment?

If methane leaks into the air before being used — from a leaky pipe, for instance — it absorbs the sun's heat, warming the atmosphere. For this reason, it's considered a greenhouse gas, like carbon dioxide.

Explanation:

4 0
3 years ago
How many electrons can be held in the third orbital?.
Evgen [1.6K]
32 electrons. as the orbitals get father away from the nucleus, they hold more electrons.
6 0
2 years ago
Read 2 more answers
Other questions:
  • Which ionic equation is balanced?
    15·1 answer
  • If a plant produces 3.21 mol of c6h12o6, how many moles of co2 are needed?
    14·1 answer
  • Perform the following calculations and give your answer with the correct number of significant figures of 10.5+11.62
    12·1 answer
  • Where would you have the least weight?​
    8·1 answer
  • A alkaline earth metal is an element is groups 3-12 of the periodic table true or false?
    6·1 answer
  • Why do elements that have positive ions occur on the left side of the periodic table?
    5·1 answer
  • Data Table 3: Polystyrene Test Tube, 12x75mm
    7·1 answer
  • Salt formed by the partial neutralization of an acid by a base are
    9·1 answer
  • Match the term with its description. (4 points)
    8·1 answer
  • Which plate is the South American plate?<br> Web<br> D<br> O A D<br> B. A<br> C. B<br> В<br> D C
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!