Answer:
B. what happens when iron rusts in the presence of water
Explanation:
The sun is mostly Hydrogen with some helium. It also has traces of other elements like various metals.
No one is 100% sure when particles of matter originated however scientist believe it had to be some time before the Big Bang
Answer:
5400 cans
Explanation:
First we convert the total weight, 1 ton, to grams:
Now we need to know the mass of aluminum:
Now we make the relation between the mass of aluminum in 1 ton of the earth's crust and the mass of aluminum per can:
Explanation:
The molecules of solids are shrinked in there normal state . but as a heat energy is produced , the molecules starts curating fast and fast as temperature goes up . since they vibrate , they hit and collide each other breaking the bondings this increases the surface of area of the solid , and molecules consumes that space and they expand .
