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
Reika [66]
3 years ago
5

Please help i’ll mark brainliest

Chemistry
1 answer:
Lynna [10]3 years ago
3 0

Answer:

Physical change

Explanation:

Chemical change is defined as the process in which new substance with different properties is formed from old substance and the process is irreversible while physical change is a reversible process and changes only physical properties of a substance.

<em>The given experiment is an example of physical change because it is just the physical act of dissolving. The metal disk is dissolving in sodium acetate and the process is exothermic and the process is reversible as well.</em>

Hence, the correct answer is "physical change".

You might be interested in
Which of the following is NOT a homogeneous mixture? *<br> koolaid<br> soda<br> tea<br> water
Wittaler [7]

Answer:

water

Explanation:

Because it does not have more than one component.

4 0
3 years ago
Hi! I'm hoping someone can help me with this please thank you XD
alexdok [17]

Answer:

I don't know that anwser sorry

3 0
2 years ago
Read 2 more answers
Is pepperoni pizza a compound or mixture?​
stiks02 [169]

Answer:

Mixture.

Pizza is a mixture of a lot of things like dough, sauce, meat, veggies, cheese, etc.

Each of those things is a mixture of other things like proteins, starches, sugars, water, fiber, vitamins, minerals, etc.

3 0
3 years ago
Read 2 more answers
How many moles of ammonia gas occupy 50 mL at at 700 kPa and 30.0 0C?
nalin [4]

For the conversions

I will start with pressure
1atm=101.3kPa
x =700kPa
x=700kPa/101.3kPa
x=6.91atm

Temperature
273K+30.00C
303K

Volume
1L=1000ml
x =50ml
x=0.05L

PV=nRT
6.91*0.05=n*0.08206*303
0.3455=24.86418n
0.3455/24.86418=n
0.0138=n
number of moles = 0.0138moles

Note: 0.08206 is the gas constant in this case
6 0
3 years ago
List emergency equipment, those are available in the laboratory?
mestny [16]

Answer:

Hands-free eyewash stations, sand bucket, fire blankets, fire extinguishers, fire alarm system and first aid kit.

Explanation:

Working in laboratories has many risks, therefore, preventive measures that should be incorporated to avoid the occurrence of any laboratory accidents.

Some of the important emergency equipment that should be available in laboratories are: hands-free eyewash stations, sand bucket, fire blankets, fire extinguishers, fire alarm system, chemical storage cabinet, first aid kits and fume hood.

Some of the personal protective equipment include lab coats, goggles, safety gloves and face shield.

7 0
3 years ago
Other questions:
  • What is the GFM of H2O2
    15·1 answer
  • How many grams of sucrose (C12H22O11) are in 1.55 L of 0.758 M sucrose solution?
    7·1 answer
  • Can you please answer number 8 thanks
    15·1 answer
  • What is the atomic mass of an atom that has 6 protons, 6 neutrons, and 6 electrons?
    12·1 answer
  • What is the organism that kills and eats other organisms for food called?
    15·2 answers
  • What is the density of an aqueous solution that is 50.0% KOH by mass and has a KOH concentration of 13.39 M?
    5·1 answer
  • Difference between atom and ion <br>plz plz answer ​
    8·2 answers
  • Pa help thank yoeee &lt;3333 ​
    8·1 answer
  • The particle diagram shown above represents the dissolution of CuCl(s) assuming an equilibrium concentration for Cu+ ions of abo
    15·1 answer
  • Suppose that 1500 kJ of energy were transferred to water at 20.0°C. What mass of water could be brought to the boiling point? He
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!