Definitions
Homogeneous
Is a uniform mixture of two or more pure substances.
Which of the following is an environmental impact of poor handling of mixtures?
a) Sewage
b) Nuclear Energy
c) Technology Disposal
d) Pesticides
e) All of the Above
e) All of the Above
Mixture
a mixture is composed of two or more substances each of which has different properties
Heterogeneous
Is a mixture where the composition is not uniform
The disposal of technological devices such as computers, cell phones, and batteries can release harmful chemicals into the earth if they are not properly handled.
a) True
b) False
a) True
Which state of matter has particles closely packed together?
a) Gas
b) Solid
c) Liquid
d) Space
b) Solid
Solvent
is the substance that is doing the dissolving
Can pesticides be beneficial for farmers?
a) True
b) False
a) True
Define Saturated:
is when no more of something can be absorbed, combined with, or added.
Pure Substance
is any solid, liquid, or gas that only contains one type of particle throughout.
Why must mixtures and different substances be handled with care?
Mixtures and substances must be handled with care because improper handling or disposal can lead to environmental disasters.
Define Unsaturated:
solution that contains less solute than it can dissolve at a given temperature
Solute
is the substance that is dissolved in the solution
What are some of the ways that water sewage systems can fail?
Overuse or heavy rainfall can cause sewage systems to fail.
Define concentration and mention when a solution is dilute and when concentrated:
Is the quantity of a solute in a solution.
Concentrated: a large quantity of a solute in a solution.
Diluted: a small quantity of a solute in a solution.