Matter
Explain and draw what particles that make up gas look like
particles are very far apart
you are performing an experiment combining two substances in a closed container. you first pour 350 ML of substance one followed by 430 ML of substance two. a chemical reaction occurs. what is the new mass? show your equation.
350 ML + 430 ML = 780 ML
the way light bounces off or reflects off of an object
Reflectivity
A characteristic that can be observed and measured
Physical property
What is an indication a chemical reaction has occured?
oder
change in color
gas bubbles
does the weight of an ice cube and the weight of a melted ice cube change?
No
you are performing an experiment combining two substances in a closed container. you first pour 200 ML of substance one followed by 850 ML of substance two. a chemical reaction occurs. what is the new mass? show your equation.
200 ML + 850 ML = 1,050 ML
the ability of matter to dissolve in a liquid
solubility
Examples of a physical change
ice melting
cutting wood
ice cream melting
Produces new matter with new and different properties.
Chemical change
Explain the volume and shape of a gas
gasses have no definite shape and no definite volume
you are performing an experiment combining two substances in a closed container. you first pour 125 ML of substance one followed by 200 ML of substance two. a chemical reaction occurs. what is the new mass? show your equation.
125 ML + 200 ML = 325 ML
Amount of space an object takes up
Volume
true or false
the ability to burn is an example of a chemical or physical property
True
examples of a chemical change
burning wood
fireworks exploding
burning toast
a substance that other substances can dissolve in
example: water
Solvent
You are conducting an experiment.
follow these steps:
fill a beaker with water until the beaker weighs 50 grams
weigh out 15 grams of salt
add the salt to the water and stir.
what will the beaker weigh after adding the salt?
50 + 15 = 65 g
Examples of solutions
cranberry juice
orange juice
air
salt water
examples of physical properties
color
length
volume
opacity
Does a boiled egg and a raw egg weigh the same? why?
yes, the amount of mass doesn't change.
A substance that can dissolve into another substance
solute
You are conducting an experiment.
follow these steps:
fill a beaker with water until the beaker weighs 100 grams
weigh out 25 grams of salt
add the salt to the water and stir.
what will the beaker weigh after adding the salt?
100 + 25 = 125 g
The property of a material to transmit heat and electricity
conductivity
Examples of a physical change
cutting your hair
putting on makeup
changing your outfit
Examples of chemical properties
solubility
flammability
boiling point