Chem Midterm Flashcards
1
Q
would changing color be considered a chemical or physical change?
A
physical
2
Q
what do chemical reactions create?
A
new substances
3
Q
how would you convert something to the kelvin scale
A
by subtracting 273
4
Q
how would you convert something to celsius?
A
add 273 (if it’s K)
5
Q
what are all elements made out of?
A
atoms
6
Q
all atoms in an element are what?
A
identical
7
Q
who used gold foil in their experiment?
A
rutherford