Answer:
0.0125 moles of NaOH are present
Explanation:
Molarity, M, is an unit of concentration widely used in chemistry. Is defined as the ratio between moles of solute (In this case, NaOH) and liters of solution.
250.0mL are = 0.250L of solution. As the molarity of the solution is 0.05M = 0.05moles / 1L, the moles present are:
0.250L * (0.05moles / 1L) =
<h3>0.0125 moles of NaOH are present</h3>
Explanation:
1. Under the influence of heat, wood produces easily substances that react eagerly with oxygen, leading to the high propensity of wood to ignite and burn.
2. Water is a natural conductor of electricity and if you throw water on an electrical fire, you can get shocked or electrocuted. Also, water may enable to fire to spread by conducting electricity throughout the room and potentially igniting flammable materials.
Answer:
• 2,1,2
Explanation:
aMg +b O2 --> cMgO
Rule of balancing :-<em><u> </u></em><em><u>Num</u></em><em><u>ber</u></em><em><u> </u></em><em><u>of</u></em><em><u> </u></em><em><u>atom</u></em><em><u> </u></em><em><u>of</u></em><em><u> </u></em><em><u>an</u></em><em><u> </u></em><em><u>element </u></em><em><u>should</u></em><em><u> </u></em><em><u>be</u></em><em><u> </u></em><em><u>equal</u></em><em><u> </u></em><em><u>on</u></em><em><u> </u></em><em><u>both</u></em><em><u> </u></em><em><u>side</u></em><em><u> </u></em><em><u>of</u></em><em><u> </u></em><em><u>equation</u></em><em><u>.</u></em>
Balancing O :- 2b = c
( now by hit and trial method )
for b = 1 => c = 2
and Balancing Mg :-
c= 2 and c = a
=> a = 2
<h3>
2Mg + O2 ---> 2MgO</h3>
Answer:
A
D
E
and maybe C I'm not sure on that one.
Explanation:
Answer:
The elastic potential energy is zero.
The net force acting on the spring is zero.
have a great day <333