AnswersSY2026-27 - 2003340 Chemistry 1 Sem 2 CRWriting and Balancing Chemical Equations

Solids and Plasmas Answers

0 verified answers
1
Free Preview

Substance X has a fixed volume, and the attraction between its particles is strong. Substance Y has widely spread out particles and can be compressed. What can most likely be concluded about these substances?

A
Substance X is a crystal, and substance Y is a liquid.
B
Substance X is a gas, and substance Y is a plasma.
C
Substance X is a plasma, and substance Y is a crystal.
D
Substance X is a solid, and substance Y is a plasma.
2
Free Preview

Keisha makes a table to compare plasmas and solids. PlasmaSolidKinetic energyX Density YWhich labels belong in the cells marked X and Y?

A
X: HighY: High
B
X: HighY: Low
C
X: LowY: High
D
X: LowY: Low
3

Which is an example of plasmas in nature?

A
solar cells
B
plasma balls
C
auroras
D
clouds
4

Temperature depends on the average kinetic energy of the particles in a sample. How does this help explain why a plasma-based light does not have a high temperature?

A
No particles in the plasma have high kinetic energy.
B
The fastest particles have the greatest mass.
C
Most particles in the plasma are heavy, slow, and very low density.
D
The fastest particles transfer most of their energy through collisions.
5

Which low-energy state of condensed matter is characterized by structural rigidity and resistance to changes of shape or volume?

A
gas
B
liquid
C
plasma
D
solid
6

Which state of matter is characterized by ionized particles, no definite shape or volume, and good electrical conductivity?

A
gas
B
liquid
C
plasma
D
solid
7

How does the motion of particles in the sun’s plasma compare to the motion of particles in a solid?

A
Particles in both the plasma and a solid move around to fill available space.
B
Particles in the plasma move randomly, but particles in a solid vibrate in one place.
C
Particles in the plasma have low kinetic energy, but particles in a solid have high kinetic energy.
D
Particles in both the plasma and a solid are made up of fast-moving electrons and cations.
8

The repeating subunits that are responsible for the shape of a crystal are known as

A
unit cells.
B
heavy nuclei.
C
light electrons.
D
amorphous cells.
9

Which description best characterizes the motion of particles in a solid?

A
slow but able to move past one another
B
fast and widely spaced
C
not moving
D
vibrating around fixed positions
10

What are thermal plasmas?

A
plasmas that have particles that collide infrequently
B
plasmas that reach a temperature equal to their surroundings
C
plasmas that do not reach thermal equilibrium
D
plasmas that have only a few particles ionized at any given moment

Did you find these answers helpful?