Answer:
The Sun transforms nuclear energy into heat and light energy.
Our bodies converting chemical energy in our food into mechanical energy for us to be able to move.
An electric fan transforming electrical energy into kinetic energy.
The grams of water needed to react with 44.9 grams of Li2O is calculated as follows
write the equation for reaction
Li2O +H2O = 2LiOH
find the moles of Li2O = mass/molar mass
= 44.9/29.9 = 1.5 moles
by use of reacting ratio between Li2O to H2O which is 1:1 the moles of H2O is therefore = 1.5 moles
mass is therefore = moles x molar mass
= 1.5 mol x 18 g/mol = 27 grams
Answer:
D. water undergoing electrolysis
Mn is the answer i just took the test
Answer:
1.02 moles of AlCl3
Explanation:
Consider the balanced reaction equation shown below;
2Al(s) + 3CuCl2(aq) -------> 2AlCl3 (aq) + 3Cu(s)
This is the balanced reaction equation for the reaction going on above. Recall that the first step in solving any problem is to accurately put down the chemical reaction equation. This balanced reaction equation always serves a reliable guide in solving the problem at hand.
Given that;
3 moles of CuCl2 yields 2 moles of AlCl3
1.53 moles of CuCl2 yields 1.53 × 2 / 3 =1.02 moles of AlCl3
