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alukav5142 [94]
2 years ago
7

1.5 What is the purpose of adding sodium carbonate to the reaction mixture? I

Chemistry
1 answer:
Shtirlitz [24]2 years ago
7 0

Answer: As sodium carbonate is added, bubbles of carbon dioxide form. When all the acid has been neutralised, adding sodium carbonate will no longer produce bubbles of carbon dioxide gas. The final rinsing with water should remove traces of the water soluble salt formed.

Explanation:

plzz mark as brainliest

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If a scientist knows the relative age of a fossil, he can also know
Rasek [7]
C I think is the right answer
4 0
2 years ago
What is the difference between a state and a microstate of a system?
Brut [27]

Answer:

a) A microstate is a snapshot of positions and speeds at a particular instant.

b) A thermodynamic state is a single possible arrangement of the positions and kinetic energies of the molecules.

c) A thermodynamic state is a set of conditions, usually temperature and pressure, that defines the properties of a bulk material.

d) A microstate is a single possibility for all the positions and kinetic energies of all the molecules in a sample.

e) A thermodynamic state is a set of conditions, usually temperature, volume and number of moles, that defines the properties of a bulk material.

Explanation:

A state of a system in thermodynamics give the properties that a material is been made up, these properties could be pressure, temperature, volumes and others , they are been called thermodynamic property

Microstates helps us to know how molecules is been arranged in single instant. Kinetics energy as well as position of molecules in a particular substance can be known in single instant.

4 0
3 years ago
An object weighting 9.6 grams is placed in a graduated cylinder displacing the volume from 10.0mL to 13.2 mL
grigory [225]

The volume of object is 3.2 ml

<h3>Explanation:</h3>

Given:

Mass of the object = M = 9.6 g

Initial volume of liquid: V_1 = 10.0\ ml

Final volume of liquid after displacement: V_2 = 13.2\ ml

Total volume of the displaced object inside a graduating cylinder will be given as difference between the final volume and initial volume of the expanding object.

V = V_2-V_1 = 13.2 -1 0.0 = 3.2\ ml

V = 3.2 ml

3 0
3 years ago
Which of the choices below has more heat being transferred as thermal energy from one place to another?
Tatiana [17]

Answer:

B

Explanation:

So, a pot of boliling is hot right? of course, since it is hot thermal energy will be transferred from one place to another. I don't know if this is correct but I just wanted to give it a try.

4 0
2 years ago
I’m which particles transition do molecules directly move from a state involving vibration in a fixed position to a state involv
satela [25.4K]
This is likely the phase change from solid to gas, or sublimation. Gas molecules have more random motion and higher kinetic energies than liquid molecules, so the change is sublimation.
4 0
3 years ago
Read 2 more answers
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