Answer:
yes
Explanation:
n the winter, Earth tilts away from the Sun. In North America, around June 21, Earth tilts on its axis toward the Sun. This is called the summer solstice, and it is when the Northern Hemisphere has the most daylight of any time of the year.
Answer:
= 18.75 L
Explanation:
Using the combined gas law;
P1V1/T2=P2V2/T2
Where; P1 is the initial pressure, 0.25 atm
V1 is the initial volume 300.0 L
T1 is the initial temperature, 400 K
P2 is 2 atm and
T2 is 200 K
Therefore;
(0.25 × 300)/400 = 2V2/200
V2 = (75 ×200)/(400×2)
= 18.75 L
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>