Match the following. match the items in the left column to the items in the right column. 1. the starting materials completely lose their properties to form new substances law of constant composition 2. a change from one state of matter to another molecule 3. a change in shape, size, or physical characteristics but remaining same substance physical change 4. a pure compound consists of exactly the same elements in the exact same ratios by mass chemical change 5. the smallest unit of a compound phase change

is there multiple choice answers?

it’s previous models   because when i picked that son of a gun’s answer it was wrong look for previous models because they might make it a different letter  

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.