Chapter 1 Flashcards
Understand the basics of chemistry (22 cards)
Equation to convert C (Celsius) to K (Kelvin)
K = C + 273.15
Equation to convert F (Fahrenheit) to C
C = (F - 32F) x 5C/9F
Equation for density
d=m/v
Physical property
A property that can be observed without changing the identity of the substance
Ex. - Color
- Melting point - Density
Physical change
In which the state of matter changes, but the identity of the matter does not change.
Chemical property
Traits of how a product is changed through chemical means
Ex. “Hydrogen gas burns in Oxygen gas to form water”
Kilo (k)
10^3
Deci (d)
10^-1
Centi (c)
10^-2
Milli (m)
10^-3
Micro (weird “u”)
10^-6
Nano (n)
10^-9
Pico (p)
10^-12
All nonzero digits are significant
2.055 and .0047
Zeros between two numbers are significant
1.0206 and 4670.1
Zeros after a decimal point are significant
39.0 and 6.700
Zeros left of the first nonzero number are NOT significant
0.000028 (has two sig figs, 2 and 8)
If the number is written in scientific notation, only consider the decimal part of the number
1.050 x 10^3 (has 4 sig figs, all numbers are significant)
Mega (M)
10^6
Giga (G)
10^9
Tera (T)
10^12
Peta (P)
10^15
