Formulas & Rules Flashcards
1
Q
convert from celsius to fahrenheit
A
c = (f - 32) x 5/9
2
Q
convert from fahrenhuit to celsius
A
f = c x 9/5 + 32
3
Q
1 L = cm^3
A
1000
4
Q
atomic number
A
number of protons and neutrons (the number on top)
5
Q
t or f; no. of protons = no. electrons
A
true
6
Q
number of elements is
A
114 in which 82 are natural and 32 are not
7
Q
the no. of nonmetal elements on the periodic table..
A
17
8
Q
no. of metalloid elements..
A
8 elements
9
Q
barium chloride potassium nitrate magnesium hydroxide potassium oxide these are all \_\_\_\_\_ compounds...
A
ionic (they end with “ide” since they contain a nonmetal (anion))
