Single replacement reactions. For example copper is more reactive than silver. So a copper wire in a silver solution will cause the silver to become a metal again.
Answer:
Explanation:
We have the number 
. Standard notation would basically be this number without the 
part.
To get rid of this part, we need to move the decimal point 6 places to the left (we go left because it's negative 6, indicating division).
So, when we move the decimal point 6 places to the left, the resulting number is: , with 5 zeros after the decimal point before a nonzero number.
Thus, the answer is .
Answer:
Explanation:
density = m/v
answer = 2.0819 g/ml
rounded (correct sig figs) = 2.08
For question 1, the correct answer is a glass breaking because this process involves only a physical change. The identity of the glass was not changed. For question 2, the correct answer is freezing ice because the bonds in a phase change are not broken down or are formed. For question 3, the correct answer is the last option. Chemical changes <span>change the identity of a substance.</span>
