Answer:
The chemical formula of the gas is 
.
Explanation:
The difference between the container with gas and empty container is equal to the mass of the gas.
Let the gas be 
Mass of the gas = m
Molar mass of diatomic gas = M
Pressure of the gas = P = 1.80 atm
Volume of the gas = V = 4.6 L
Temperature of the gas= T = 27.0 C = 27.0 + 273 K = 300 K
Moles of diatomic gas = n = 
Using ideal gas equation:
Atomic mass of the element X = 
The element is nitrogen and the diatomic gas is .
Answer:
11 electrons
Explanation:
The number of electrons is the same as the number of protona in a <u>ATOM</u>.
They will most likely be different in a ion, simple bond or a convalent bond.
Objects considered a solid:
Pencil
Water bottle
Phone
Table
Plant
Atoms are very attracted to one another in solid objects. They vibrate, but remain in fixed positions without moving.
Answer:
14 ml of water
Explanation:
To find the volume you need to dilute the concentration of a solution, you should use the formula C1 x V1 = C2 x V2 in which:
C1 = initial concentration ( in this case 60 %)
V1 = initial volume ( in this case 70 ml)
C2 = Final concentration ( you want to dilute until 50 %)
V2 = final volume ( the variable you want to search)
So you need to:
1.- Isolate the variable you want to find: V2 = (C1 x V1) / C2
2.- Substitute data: V2 = (60% x 70 ml) /50 %
3.- You do the math, in this case is 84 ml.
4.- Remember that you have a initial volume of 70 ml, so the difference (84 ml - 70 ml = 14 ml) is the volume you need to add to dilute your solution.
