48 What is the vapour pressure of 54g of water to sice 46.62.
Nacl. has been added, taken 17.11 atm as vapeur pressure of
pure water (a) 34.35 atm. (b) 12.83 aton (C) 12.19am, (d)
91.31 atm

quartz

explanation:

1. a)c-14 has two more protons

2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.

3. c) iron and nickel.

the answer is 75.0%.

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.