Physical and Chemical Changes Matter Matter – anything that has volume or mass. Atoms are the...
-
Upload
myra-walton -
Category
Documents
-
view
222 -
download
0
Transcript of Physical and Chemical Changes Matter Matter – anything that has volume or mass. Atoms are the...
![Page 1: Physical and Chemical Changes Matter Matter – anything that has volume or mass. Atoms are the smallest unit of matter! Volume – anything that takes.](https://reader036.fdocuments.us/reader036/viewer/2022062304/56649ebd5503460f94bc6f16/html5/thumbnails/1.jpg)
Physical and Chemical Changes
![Page 2: Physical and Chemical Changes Matter Matter – anything that has volume or mass. Atoms are the smallest unit of matter! Volume – anything that takes.](https://reader036.fdocuments.us/reader036/viewer/2022062304/56649ebd5503460f94bc6f16/html5/thumbnails/2.jpg)
Matter Matter – anything that has volume or
mass. Atoms are the smallest unit of matter!
Volume – anything that takes up space
Mass – the amount of matter that something is made of
![Page 3: Physical and Chemical Changes Matter Matter – anything that has volume or mass. Atoms are the smallest unit of matter! Volume – anything that takes.](https://reader036.fdocuments.us/reader036/viewer/2022062304/56649ebd5503460f94bc6f16/html5/thumbnails/3.jpg)
MASS Mass
Measured in grams with a balance
![Page 4: Physical and Chemical Changes Matter Matter – anything that has volume or mass. Atoms are the smallest unit of matter! Volume – anything that takes.](https://reader036.fdocuments.us/reader036/viewer/2022062304/56649ebd5503460f94bc6f16/html5/thumbnails/4.jpg)
Volume Liquid Volume
measured in liters
Meniscus – the curve that
you see at the liquid’s
surface used to measure
the volume
![Page 5: Physical and Chemical Changes Matter Matter – anything that has volume or mass. Atoms are the smallest unit of matter! Volume – anything that takes.](https://reader036.fdocuments.us/reader036/viewer/2022062304/56649ebd5503460f94bc6f16/html5/thumbnails/5.jpg)
Volume Solid Volume
Measured in cubic meters (m3)
Cubic means “having 3 dimensions”
![Page 6: Physical and Chemical Changes Matter Matter – anything that has volume or mass. Atoms are the smallest unit of matter! Volume – anything that takes.](https://reader036.fdocuments.us/reader036/viewer/2022062304/56649ebd5503460f94bc6f16/html5/thumbnails/6.jpg)
Remember Inertia – tendency of all objects to
resist any change in motion More Mass Greater Inertia
harder to move an object with a large mass harder to stop an object with larger mass once
moving
![Page 7: Physical and Chemical Changes Matter Matter – anything that has volume or mass. Atoms are the smallest unit of matter! Volume – anything that takes.](https://reader036.fdocuments.us/reader036/viewer/2022062304/56649ebd5503460f94bc6f16/html5/thumbnails/7.jpg)
A. Matter FlowchartMATTER
Can it be separated by physical means?
Homogeneous Mixture
(solution)
Heterogeneous Mixture Compound Element
MIXTURE PURE SUBSTANCE
yes no
Can it be decomposed by chemical means?
noyesIs the composition uniform?
noyes
![Page 8: Physical and Chemical Changes Matter Matter – anything that has volume or mass. Atoms are the smallest unit of matter! Volume – anything that takes.](https://reader036.fdocuments.us/reader036/viewer/2022062304/56649ebd5503460f94bc6f16/html5/thumbnails/8.jpg)
B. Pure Substances Element
matter composed of identical atoms EX: copper
![Page 9: Physical and Chemical Changes Matter Matter – anything that has volume or mass. Atoms are the smallest unit of matter! Volume – anything that takes.](https://reader036.fdocuments.us/reader036/viewer/2022062304/56649ebd5503460f94bc6f16/html5/thumbnails/9.jpg)
B. Pure Substances Compound
matter composed of 2 or more elements in a fixed ratio
properties differ from those of individual elements
EX: salt (NaCl)
![Page 10: Physical and Chemical Changes Matter Matter – anything that has volume or mass. Atoms are the smallest unit of matter! Volume – anything that takes.](https://reader036.fdocuments.us/reader036/viewer/2022062304/56649ebd5503460f94bc6f16/html5/thumbnails/10.jpg)
C. MixturesNon-specific combination of 2 or more pure substances.
Homogeneous Mixture
even distribution of components
EX: saline solution
Two Types of Mixtures
Heterogeneous Mixture
uneven distribution of components
EX: granite
![Page 11: Physical and Chemical Changes Matter Matter – anything that has volume or mass. Atoms are the smallest unit of matter! Volume – anything that takes.](https://reader036.fdocuments.us/reader036/viewer/2022062304/56649ebd5503460f94bc6f16/html5/thumbnails/11.jpg)
A. Physical Property A characteristic of matter that can be
observed or measured without changing the identity of its matter.
can be used to separate mixtures
EX: density, color, odor, mass and volume
![Page 12: Physical and Chemical Changes Matter Matter – anything that has volume or mass. Atoms are the smallest unit of matter! Volume – anything that takes.](https://reader036.fdocuments.us/reader036/viewer/2022062304/56649ebd5503460f94bc6f16/html5/thumbnails/12.jpg)
Chemical Property A characteristic that indicates whether a
substance can undergo a specific chemical change.
EX: flammability, reactivity
![Page 13: Physical and Chemical Changes Matter Matter – anything that has volume or mass. Atoms are the smallest unit of matter! Volume – anything that takes.](https://reader036.fdocuments.us/reader036/viewer/2022062304/56649ebd5503460f94bc6f16/html5/thumbnails/13.jpg)
Physical Change Physical changes occur when
matter changes its property but not its chemical nature.
Physical changes could include a change in: texture, shape, size, color, odor, volume, mass, weight, and density.
![Page 14: Physical and Chemical Changes Matter Matter – anything that has volume or mass. Atoms are the smallest unit of matter! Volume – anything that takes.](https://reader036.fdocuments.us/reader036/viewer/2022062304/56649ebd5503460f94bc6f16/html5/thumbnails/14.jpg)
Physical ChangeRemember!
properties remain the same
reversible
can be used to separate mixtures
![Page 15: Physical and Chemical Changes Matter Matter – anything that has volume or mass. Atoms are the smallest unit of matter! Volume – anything that takes.](https://reader036.fdocuments.us/reader036/viewer/2022062304/56649ebd5503460f94bc6f16/html5/thumbnails/15.jpg)
Physical Change
![Page 16: Physical and Chemical Changes Matter Matter – anything that has volume or mass. Atoms are the smallest unit of matter! Volume – anything that takes.](https://reader036.fdocuments.us/reader036/viewer/2022062304/56649ebd5503460f94bc6f16/html5/thumbnails/16.jpg)
Chemical Change Chemical changes are changes
matter undergoes when it becomes new or different matter.
To identify a chemical change look for signs such as color change, bubbling and fizzing, light production, smoke, and presence of heat.
![Page 17: Physical and Chemical Changes Matter Matter – anything that has volume or mass. Atoms are the smallest unit of matter! Volume – anything that takes.](https://reader036.fdocuments.us/reader036/viewer/2022062304/56649ebd5503460f94bc6f16/html5/thumbnails/17.jpg)
C. Chemical ChangeRemember!
properties change
irreversible
Signs: color change, formation of a gas/solid, release of light/heat
![Page 18: Physical and Chemical Changes Matter Matter – anything that has volume or mass. Atoms are the smallest unit of matter! Volume – anything that takes.](https://reader036.fdocuments.us/reader036/viewer/2022062304/56649ebd5503460f94bc6f16/html5/thumbnails/18.jpg)
Chemical Change A chemical change
occurs when fireworks are used. Fireworks are made of metals such as magnesium and copper. These change chemically as they light up the sky.
![Page 19: Physical and Chemical Changes Matter Matter – anything that has volume or mass. Atoms are the smallest unit of matter! Volume – anything that takes.](https://reader036.fdocuments.us/reader036/viewer/2022062304/56649ebd5503460f94bc6f16/html5/thumbnails/19.jpg)
Density Density describes
how much mass is in a given volume of a material.
![Page 20: Physical and Chemical Changes Matter Matter – anything that has volume or mass. Atoms are the smallest unit of matter! Volume – anything that takes.](https://reader036.fdocuments.us/reader036/viewer/2022062304/56649ebd5503460f94bc6f16/html5/thumbnails/20.jpg)
Density Solids, liquids and
gases are matter, so they all have density.
![Page 21: Physical and Chemical Changes Matter Matter – anything that has volume or mass. Atoms are the smallest unit of matter! Volume – anything that takes.](https://reader036.fdocuments.us/reader036/viewer/2022062304/56649ebd5503460f94bc6f16/html5/thumbnails/21.jpg)
Determining Density To find the density of a
material, you need to know the mass and volume of a solid sample of the material.1. Mass is measured with
a balance or scale.
2. Use the displacement method or calculate the volume.
![Page 22: Physical and Chemical Changes Matter Matter – anything that has volume or mass. Atoms are the smallest unit of matter! Volume – anything that takes.](https://reader036.fdocuments.us/reader036/viewer/2022062304/56649ebd5503460f94bc6f16/html5/thumbnails/22.jpg)
Density Problems
![Page 23: Physical and Chemical Changes Matter Matter – anything that has volume or mass. Atoms are the smallest unit of matter! Volume – anything that takes.](https://reader036.fdocuments.us/reader036/viewer/2022062304/56649ebd5503460f94bc6f16/html5/thumbnails/23.jpg)
What is my Density?
Mass
1. 500g
2. 300g
3. 25g
Volume
50ml
15ml
5cm3
Complete the following questions on a separate sheet of paper as a part of your homework assignment.