Classifying Matter
What is matter that has a uniform and definite composition?
Pure Substance
What is an intensive property?
A property that depends on the type of matter, not the amount of matter
What is physical change?
Some properties of a material change, but the composition of the material does not change.
What is the law of conservation of mass?
In any physical change or chemical reaction, mass is conserved. Mass is neither created nor destroyed.
What are the three (main) states of matter
gas, liquid, and solid
What is the definition of a homogeneous mixture?
A mixture in which the composition is uniform throughout.
Give two examples of physical change
Phase changes, cut, break, split, etc.
If you are forming NaCl and you have 30.0g Na react fully with 45.5g of Cl. What is the mass of your product NaCl
75.5g NaCl
What state of matter has particles that very rigid and have little movement?
Solid
What is a compound?
Substance that contains two or more elements combined chemically in a fixed proportion.
Conductivity is an example of a _______ property
Physical property
Name two examples of physical properties.
Melting point, boiling point, conductivity, magnetism, state, color, odor, etc.
What is the percent mass of Carbon in Carbon Dioxide? Use your periodic table.
27%
Which state of matter has no definite volume?
gas
What is the classification of NaCl(aq)?
Does it have constant composition?
Homogeneous mixture, solution, it does not have constant compsition
What is an extensive property?
A property that depends on the amount of matter in the sample.
Give 4 clues of chemical change
color change, precipitate formed, release of heat/light/energy transfer, gas is created
Silver and Nitrate partially react to form silver nitrate. You start with 52.5g of Silver and end with 8.0g of Silver. You start with 95.4g of Nitrate and you form 132.8g of Silver Nitrate. How much Nitrate is unreacted?
7.1g of Nitrate left
What two states of Matter have a definite volume?
solid and liquid
Draw the particle drawing of a homogeneous mixture versus a heterogeneous mixture.
Images that show separation of particles for heterogeneous mixtures and uniform composition for homogeneous mixtures
What is the difference is between physical and chemical properties
Physical properties are characteristics of substances that can be observed without changing the substance, chemical properties describes way a substance reacts when with other substances and chemically changes.
Physical (P) or Chemical (C) change?
1. Glass breaking? 2. Squeeze oranges for orange juice? 3. Burning Leaves?
1.physical
2.physical
3.chemical
You have two unknowns that you believe are samples of glucose C6H12O6 , you found that both samples contain 40% Carbon, and approximately 6.7% hydrogen. If these samples only contain carbon, hydrogen, and oxygen are they the same? Is either or both samples glucose?
Yes, they are both glucose. Using the periodic table glucose's percent mass is 40% carbon, 6.7% hydrogen, and 53.5% oxygen.
Which state of matter has particles that are close together, but can flow past one another?
liquid