Chapter 1-5 Chemistry

Question 1

What are physical properties?

Answer 1

it’s measurable and observable
the property changes, matter doesn’t

Question 2

Types of physical matter and what they are

Answer 2

Intensive- type of matter (density, color, boiling pt)
Extensive- amount of matter (volume, mass, area)

Question 3

What are Chemical properties?

Answer 3

They are observable until they undergo a chemical change

Question 4

Homogeneous

Answer 4

mixture that has same particles

Question 5

Heterogeneous

Answer 5

mixture that has different sizes particles

Question 6

Endothermic reactions

Answer 6

this is heat being absorbed, particles speed up (evaporation, boiling)

Question 7

Exothermic reactions

Answer 7

this is heat being released, particles slow down (freezing)

Question 8

Ways to separate matter?

Answer 8

physically, filtration

Question 9

Difference between accuracy and precision?

Question 10

Short hand vs isotope form

Answer 10

short hand has the mass number above the symbol and the atomic number on the bottom. isotope form is the name with the mass number

Question 11

which color has the highest energy?

Answer 11

violet

Question 12

How do you see light?

Answer 12

movement from electrons