Answer :
(a) The value of volume of air at temperature 
are 
respectively.
Explanation :
(a) The formula used for density is:
or,
Now we have to calculate the volume at each temperature.
The mass of sample = 1000 g
<u>At temperature 
:</u>
Density = 
<u>At temperature 
:</u>
Density = 
<u>At temperature 
:</u>
Density = 
Technology is anything made my man to make tasks easier. So yes, a screwdriver is technology.
Surface runoff, its quite obvious in the picture
Answer:
1.An initial observation is the measurement that you take before you start any process that might cause a change. When you compare your subsequent observations with the initial one, you will see whether any change has taken place, and you will be able to measure the change.
Explanation:
D ko po alam yung iba
Answer:
60.052 g/mol (molar mass of vinegar)
84.007g/mol (baking soda )
