By providing the heat to the ice th closely packed particles of it gain kinetic energy and move away from each other so it melts
Answer:
No
Explanation:
No, Ana's prediction of sorting out : mixture 1 'marble salt' with by her fingers, ie handpicking is not right.
Marble & salt particles mixture can't be sorted by handpicking. They can be seperated by the method of sieving rather, as marble particles being bigger stay in the sieve & salt particles being smaller (finer) pass through it.
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>
39 J
P=Fd/t i belive is the answer