Hw 5 (ch 1.3-1.4 // 4.1-4.5 // 8.5)

Question 1

Matter defined as…

Answer 1

Anything that has mass and occupies space

Question 2

An amorphous solid…

Answer 2

Does not have any regular, internal geometric pattern

Question 3

Homogeneous matter is…

Answer 3

Uniform in appearance and has the same properties throughout

Question 4

Heterogeneous matter is…

Answer 4

Matter consisting of two or more physically distinct phases

Question 5

Another name for a homogeneous mixture?

Answer 5

Solution

Question 6

Potential energy is…

Answer 6

Stored energy or energy that an object possesses due to its relative position

Question 7

Kinetic energy is…

Answer 7

Energy that matter possesses due to its motion

Question 8

Law of conservation of energy states that…

Answer 8

Energy can be neither created nor destroyed, though it can he transformed from one form to another

Question 9

Endothermic reactions…

Answer 9

Require heat to proceed

Question 10

Exothermic reactions…

Answer 10

Produce heat as a product

Question 11

Joules to calories

Answer 11

1 cal = 4.184 Joules

Question 12

Specific heat of a substance is…

Answer 12

The amount of heat required to change temp of 1 g of substance by 1 degree Celsius

Question 13

Formula for heat =

Answer 13

Heat = (mass of substance) (specific heat of substance) (change in temp)