Ice is less dese than water
Answer:

Explanation:
The unbalanced nuclear equation is

It is convenient to replace the question by an atomic symbol,
, where <em>x </em>= the atomic number, <em>y</em> = the mass number, and Z = the symbol of the element.

Then your equation becomes

The main point to remember in balancing nuclear equations is that the <em>sums of the superscripts and of the subscripts</em> must be the same on each side of the equation.
Then
93 – 1 = <em>x</em>, so <em>x</em> = 92
232 + 0 = <em>y</em>, so <em>y</em> = 232
Element 92 is uranium, so the nuclear equation becomes

Well all reactions need energy to start it. The light is the energy that the reaction requires to start it. Sunlight also has no mass in the first place so laws of conservation of mass don't apply to it.
Answer:
ok
Explanation:
this is a picture of a city that we have made worse everyday
Hey there !
<span>Balanced equation:
1 MgS +1 Na2O = 1 Na2S + 1 MgO
</span>
MgS = 1
Na2O = 1
Na2S = 1
MgO = 1
Answer D