Latest 2026/2027 Chemistry 109 Exam 1 Study Guide | General Chemistry Practice Questions & Review

Chemistry 109_ Exam 1
how to find density? d = m(mass)/v(volume)
kg/m^3



how to find volume? v = mass/density




how to find mass? m = volume * density




SI metric: length meters




SI metric: temperature Kelvin




SI metric: time seconds




SI metric: mass kilograms




Mega (M) mean? 1 x 10^6
1,000,000



Kilo (k) mean? 1 x 10^3
1,000



Deci (d) 1 x 10^-1
0.1



Centi (c) mean? 1 x 10^-2
0.01



Milli (m) mean? 1 x 10^-3
0.001



Micro (μ or mc) mean? 1 x 10^-6
0.000001



Nano (n) mean? 1 x 10^-9
0.000000001



Pico (p) mean? 1 x 10^-12
0.000000000001

, Chemistry 109_ Exam 1
How to find Kelvin? K = °C + 273.15




How to find Celsius? °C = 5/9(°F - 32)
°C = K - 273.15



How to find Fahrenheit? °F = 9/5(°C) + 32




3 states of matter? Solid
Liquid
Gas




What is a substance? -specific instance of matter (air, sand, water)
-pure substance




Pure substance? -element (carbon)
-compound (H2O)



Mixtures? -2 or more instance of matter to make 1 sample
-2 types: homogeneous & heterogeneous



heterogeneous mixture -2 separate compositions




Homogeneous mixture -uniform compositions




Matter -anything that takes up space and has a mass