Vocabulary
What is another term used to describe parts of a mixture or solution?
Component
True or False: A physical change will change the mass of the substance.
False
What will happen to a jar of water if there is no lid on the jar?
It will eventually all evaporate and turn into a gas
What is an example of a mixture?
example: fruit salad, cereal and milk
True or false: It is possible to separate all mixtures and solutions.
True
Define what a mixture is.
A mixture is the combination of two or more substances that keep their own properties.
Change in the state of matter (from solid to liquid) will always be a __________ change.
physical
What makes a liquid different than a solid?
A liquid has no definite shape, it takes the shape of its container
What is two examples of solutions?
ex: lemonade, chocolate milk
What will happen to the mass of an object after a chemical reaction occurs?
The mass will increase
Define "chemical change"
a change that produces one or more new substances
Which is NOT evidence of a chemical change?
a. a shape change
b. a temperature change
c. a change in the type of matter
d. a change in the state of matter
d. a change in the state of matter
What makes a gas different than a solid?
Gases have no definite shape or volume
How would you separate the components that make up saltwater?
the water would have to evaporate, leaving the salt behind
Properties of materials: hardness, magnetism, volume, weight, color, shape
Which two properties would provide evidence of a substance's state of matter?
volume and shape
Define "solution"
a mixture in which substances are spread out evenly and do not settle to the bottom of the container
What are two examples of a chemical change?
ex: rust, baking
What are three thing to look for in a chemical change?
Change in color, light or heat, a solid forming, gas bubbles, a new smell
Is chocolate chip pancake batter a mixture or a solution, and why?
A mixture, because not all items will be evenly spread out.
The mass of nails is 37 grams. After a chemical reaction, the nails rusted. The oxygen from the chemical reaction has a mass of 14 grams. What is the total mass of the rusty nails?
51 grams
What does the law of "conservation of matter" state?
in any chemical or physical change, the total mass of the matter does not change
AB + CD ...
What would the model look like if a chemical reaction had occurred?
AC+BD
AD+BC
What is Miss Maatman's favorite solution?
coffee :)
What is a solute and what is a solvent?
solute: the item being mixed into the solvent
solvent: the substance the solute is mixing into
Solution A: 128 grams
Solution B: 23 grams
Solution C: 52 grams
Arthur mixed all the solutions together to make a new substance. What is the mass of the new substance?
203 grams