Complete practice question 1, 2 and 3 on page 187: 1. Complete and balance the following decomposition reactions. Note: All metal
products are solids, and any remaining products are gases.
a. AuCl3(s) –
b. MgF2(s) –
c. Li20(s) -
d. CsCl(s) –

answer:

the reaction is type of combination reaction.

explanation:

on the product side, there are 2 molecules of bonded to fe   which means one atom of fe are combined two molecules of . so, balanced chemical equation becomes :

this reaction follows the reaction type of combination reaction. a combination reaction is defined as chemical reaction in which reactants combines together to form a single product.

answer:

technetium is the most reactive. this is followed by silver. the least reactive out of these three elements is strontium.

answer is: nuclear fusion produces elements that are heavier than helium.

nuclei combine to form a heavier nucleus, releasing energy.  

for example, fusion of hydrogen atoms at the sun.  

this fusion nuclear reaction is in the inner core of the sun and hydrogen (atomic number 1) is conveted into helium (atomic number 2).  

the inner core is the central region of the sun and all solar energy is produced in the core by nuclear fusion.  

0.88m hope i am correct : )