Answer: can u explain ur question please?
Explanation:
Answer:
Magnesium,Berillium,
Explanation:
they they belong to group II
The atomic number=5
The mass number=11
<h3>Further explanation</h3>
In the following element notation,
X = symbol of elemental atom
A = mass number
= number of protons + number of neutrons
Z = atomic number
= number of protons = number of electrons, on neutral elements
So for The atomic notation for a particular atom of Boron :
₅B¹¹
Z=5=atomic number
A=11=mass number
Examples of carbohydrates: <span><span>glucose (monosaccharide) and </span><span>fructose (monosaccharide)
Examples of lipids: fats and steroids
Source credit:
</span></span>http://examples.yourdictionary.com/examples-of-lipids.html
https://www.thoughtco.com/examples-of-carbohydrates-603884
Answer:
The answer to your question is 178.6 g
Explanation:
Data
ΔT = 1.8 °C
mass = 17.5 g
mass of water = 100 g
Kc = 1.86
Process
1.- Calculate the molality using the following formula
ΔTc = mKc
solve for m
m = ΔTc/Kc
substitution
m = 1.8/1.86
result
m = 0.968
2.- Calculate the number of moles
m = # of moles/kg of solvent
kg of solvent = 0.1 kg
# of moles = m x kg of solvent
# of moles = 0.968 x 0.1
# of moles = 0.0968
3.- Calculate the molar mass
x g molar mass --------------------- 1 mol
17.5 g --------------------- 0.0968 moles
x = (1 x 17.5)/0.0968
x = 178.6 g
