Particles & States of Matter
Anything that has mass and takes up space is called...
Matter
What is another word to describe the amount of space something occupies, measured in mL?
Volume
A solution is a (homogeneous / heterogeneous) mixture.
Homogeneous
A paper ripping is an example of a (physical / chemical) change.
Physical change
In a chemical change, there are (no new / new) substances created.
There are new substances.
Name the three states of matter.
Solids, liquids and gases
What equipment do we use to measure mass in g?
Beam balance
The best mixture separation technique for a solid-liquid mixture is ____________.
Filtration
What phase change is associated to a LIQUID becoming a GAS?
Vaporization
The mass before a chemical reaction is (less than / equal to / more than) the final mass.
The same! (equal mass)
Which particle is considered a MOLECULE: an oxygen atom O, or oxygen gas O2?
O2
Acid
What is an aqueous solution?
Solution in which solvent is water
Physical changes (do not / do) change the characteristic properties of matter.
Explain why.
Do not change. Because no new particles.
Give one example of an indicator (clue) of a chemical change.
Any of the following:
-Emission of light
-Change of colour
-Change in temperature
-Formation of gas
-Formation of solid
This state of matter has a definite volume, but does not have a definite shape.
Liquids
For a very LARGE irregular solid, we can find its volume using (displacement method / overflow container).
Overflow container
What is the difference between homogeneous and heterogeneous mixtures?
You can see the different substances in heterogeneous mixtures, but not in homogeneous mixtures.
What is the difference between chemical and physical changes?
In physical changes, no new substance is made, like in chemical changes.
H + Cl —> HCl
Describe the type of chemical reaction this is.
Type: Synthesis
The smaller number on the periodic table is the atomic (number / mass).
Atomic number
A thermometer measures the ___________ in degrees Celsius, which really describes how ________ the particles are.
temperature, fast
What mixture separation technique is best for two liquids with different boiling points?
Distillation
In a physical change, like a phase change, the number of atoms (does not change / changes).
Does not change.
How is rust made?
Iron reacts with oxygen (oxidation reaction).