Answer:
The sum of the protons and neutrons.
Explanation:
protons + neutrons = atomic mass
A rock is definitely more dense. If you were to put a cloud in water it would float/stay above it and a rock would sink to the bottom
N2O is compound becoz it has more than one type of atoms.
<span>Air is homogeneous mixture becoz it has different gases which are does not bonded to each other</span>
Answer:
k+
Ba2+
Al3+
K+
S2-
you may think that if it has a + it would be bigger, but it is actually the opposite.
Answer:
C. 3
Explanation:
12.0 - 3 significant figures 1,2 and 0, because 0 is after decimal point.
