Answer:
The answer to your question is 4 M
Explanation:
Data
NaCl 2 moles
Volume = 0.5 l
Molarity = M
Process
1.- Write the formula of Molarity
2.- Substitution
3.- Simplification and result
Molarity = 4 M
Answer:
Explained below
Explanation:
Normally, when the temperature of water gets colder than 4° C, it starts expanding and will become less dense the colder it becomes. As the temperature gets closer to freezing point, the colder water will float to the top and the warmer water sinks to the bottom. This is mainly because of how the density of water behaves with falling temperatures.
Thus, the lake/river water will freeze from top to down as a a result of that phenomenon of colder water floating to the top and the warmer water sinking to the bottom.
Answer:
B and C is your answer
Explanation:
Hope I helped, Sorry if I'm wrong
N2 + 3H2 --> 2NH3
When 100g of N2 , no of moles of N2= 100/(28)=3.57 mol
no. of moles of h2 = 6/(2)=3mol
Therefore h2 is limiting reagent.
no. of moles of ammonia= 3/3*2=2moles
mass of ammonia produced= 2 mol * (14+3)= 34g
break down food into smaller molecules the body can use; absorb molecules into blood and carry them throughout the body; eliminate wastes from the body
