Matter and the Particle Theory
Pure Substances, Mixtures and Solutions
Solutes and Solvents
Concentration and Solubility
Review
100
What is the particle theory of matter?
An explanation of what matter is made of and how it behaves; the particle theory states that all matter is made up of tiny particles that are always moving, that attract each other, and that have space between them.
100
Is aluminum a mixture?
No.
100
What is a solute and give an example of it.
The part of a solution that dissolves. For example: sugar.
100
Define a "dilute solution".
A "dilute solution" is a solution that has a small amount of solute particles in it.
100
What is matter?
Anything that takes up space. For example: us!
200
What state of matter are snow flakes?
Solid water.
200
What are the names of the mixtures that have different particles that you can see?
Mechanical and heterogeneous mixtures.
200
Why is water a mixture and why can't certain things mix with it such as oil?
Water is a mixture because it has oxygen and hydrogen and contains some minerals and at times is modified (sparkle water). Some things don't mix with water because it may be more dense than water (for example: oil).
200
Define the "concentration" of a solution.
The concentration of a solution is the quantity of solute in a certain volume of solution.
200
Name 3 ways that water gets polluted.
1. Pesticides. 2. Waste from mining. 3. Industrial waste. 4. Sewage and household products down the drain.
300
How to make particles move faster?
Heat it.
300
Describe the particles in mechanical mixtures and solutions.
The different particles of a solution are evenly mixed. Whereas the different particles of a mechanical mixture are unevenly mixed.
300
How much of your body is water and how much percent of the earth's surface is water?
70% for both.
300
Which solute is more soluble: salt or sugar?
In fact sugar is more soluble.
300
Define a pharmaceutical.
Of or related to the pharmacy.
400
List at least 3 of the main ideas of the particle theory of matter.
1. All matter is made up of tiny particles. 2. Particles have empty spaces between them. 3. Even though you cannot see them, particles are moving randomly all the time. 4. Particles move faster and spread farther apart when they are heated. 5. Particles attract each other, so they tend to stay together rather than fly apart.
400
Which liquid do we carefully have to dispose.
Mercury.
400
What percent of nitrogen, oxygen and argon gas do we breathe?
78% nitrogen 21% oxygen 1% argon gas
400
How are the terms "saturated solution" and "solubility" similar?
The answer is in the meaning itself: Solubility is a measure of how much solute can dissolve in a certain solvent to form a SATURATED solution at a particular temperature and volume. Meaning that solubility is the measurement of how much solute is needed to make a SATURATED solution.
400
What is the solvent in a soda bottle?
Water.
500
What is the name of the poison in almond extract?
Cyanide.
500
What are things we should carefully recycle or throw out?
Batteries and CFLs.
500
What is the percent of water and salt in the ocean?
96% water and 4% salt.
500
What is the mathematical equation to find out the solubility of a solute?
Solubility= The maximum amount of solute that will dissolve, in grams divided by 100mL solvent at a certain temperature.
500
What are the skills of scientific inquiry that can be used to compare the solubility of different samples of matter.
1. Solubility can be determined by creating saturated solutions and taking careful measurements. 2. Solubility can be affected by changing the temperature of the solvent.
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