I think the answer might be C. Planets. Not exactly sure though... Let me know if this was correct!! :-)
Answer:
2KClO3(s) + heat → 2KCl(s) + 3O2(g)
Explanation:
KClO3(s) + heat → KCl(s) + O2(g)
Adding coefficients so that there are 6 O atoms on both sides.
2KClO3(s) + heat → KCl(s) + 3O2(g)
Balancing K and Cl atoms, there are 2 of each on the left and 1 of each on the right.
2KClO3(s) + heat → 2KCl(s) + 3O2(g)
The equation is now balanced.
covalent bond is the answer.
<span>2NH4CL + Ba(OH)2 --> 2NH3 + 2H2O + BaCl2
(acid neutralizes base; the product has to have all the components it started with in the reactants; since you know that water and a base will be a product, group the two leftovers together)</span>
