THINK ABOUT IT
Identifying Types of Observations
Indicate the type of observation that is best represented by the figures below.
Time (s)
Temp (°C)
Solution
Observation
0
25
Unknown 1
Blue
10
18
Unknown 2
Purple
22
12
qualitative
O quantitative
qualitative
quantitative
O qualitative
O quantitative
DONE
DONE
DONE
Intro

What is the mass of 4 molecules of co2

What is the atomic mass of an atom that has 6 protons, 6 neutrons, and 6 electrons? a) 6 b) 8 c) + 1 d) 12 e) 18

Which statement is true about hcl? (5 points) select one: a. it is a salt because it increases the concentration of metallic ions. b. it is a salt because it is formed by the reaction of an acid and a base. c. it is an acid because it increases the concentration of hydroxyl ions. d. it is an acid because it increases the concentration of hydronium ions.