Chemistry Homework 4.12.24 Flashcards
Quantitative 1
Describe the arrangement of particles in a solid
A regular arrangement
State the law of conservation of mass
Mass cannot be created nor destroyed.
In chemical reactions, explain why mass can sometimes appear to increase.
Because one of the reactants is a gas which is added to the product(s)
Describe the arrangement of particles in a liquid.
Random arrangement; no set shape.
Give the four state symbols and what they represent.
l (liquid)
g (gas)
aq (aqueous)
s (solid)
Describe the motion of particles in a solid.
They vibrate without changing position.
Describe the arrangement of particles in a gas.
A random arrangement; no set shape.
Name the change of state from gas to liquid.
Condensing
Name the change of state from liquid to gas.
Boiling
Describe the motion of particles in a liquid.
They flow and rotate over one another.
In chemical reactions, explain why mass can sometimes appear to decrease.
Because one of the products is a gas which escapes and isn’t read on the scale.
Name the change of state from solid to liquid.
Melting
Name the state of matter shown in each diagram.
A - Solid
B - Gas
C - Liquid
Name the change of state from liquid to solid.
Freezing
Which state of matter is the densest: solid, liquid or gas?
Solid.
Name the three main states of matter.
Solid, liquid, gas.
Describe the motion of particles in a gas.
Constant, random motions with different speeds and directions.
The diagram shows a simple model of the three states of matter. Name three limitations of the model.
No forces, particles are only represented as spheres and the spheres are all solid.
