1. 5 No, when observing physical properties such as color and volume the change is done
without forming a new substance so the identity stays the same.
6 Gold is a solid or liquid that has a gold color, is shiny, and malleable.
7. Skip
8. Vinegar D > oil D
9 solubility is a physical change
10 Aluminum is a metal and malleable so Al can form shapes.
11 The pressure from the evaporated water causes the tea kettle to whistle and the geyser to
erupt
12 UNDERLINE AFTER CHEJICAL PROPERTY
13 Iron Oxide is rust so water and more oxygen make rust.
14 Malleability is physical and rust is a chemical property
15 physical malleable chemical is rusty nail
16 physical, chemical, physical, chemical
17 Paint color is physical, flammability is chemical, inorganic fabrics are chemically made
18 The physical and chemical properties can identify what the items are and where the items
were purchased or how the items may have been used in the crime.
19 For something to be false or not it, this must occur only once, but for something to be true,
The truth must be always and stand the test of time.
20 None of these would tell you for sure, but a combination of testing needs to be done to
Confirm (color, streak, malleability, and density is the more accurate information,
21 A 4.54 g
B D = m/V

2. 21 A 4.54 g
B D = m/V
C D = m/V
D D = m/V
D = g/14cm3
D = 4.61 g/cm3
g/cm3 are units for D
Gold has a density of 19.3 g/cm3 so no this sample is not gold
22 solubility
23 liquid
14 Reactivity with water
25 burn
26 do not
27 Moh’s hardness test, streak test, malleability, solubility, conductivity, magnetic or not, fizz or not, chemical reactivity with water, boiling point, melting point, ductile, 28