Explanation:
physical changes : boiling water, freezing water, a pencil being sharpened.
chemical change : rotting cheese, exploding dynamite.
Answer:
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Answer:
0.400 mol N2O5 contains 2.41 molecules N2O5 .
Explanation:
SiO2 represents B. Quartz
Hi!
<u>Answer: 1ml of NaOH and 49 ml of Water</u>
Concentration of NaOH to make: 0.001 M ( C1 )
Volume of NaOH to make: 50 ml ( V1 )
Concentration of NaOH in stock: 0.05 M ( C2 )
Volume of stock to use: V2
Using the formula C1 V1 = C2 V2 which is the standard formula for determining the dilutions to acquire a specified volume and concentration, we get:
0.001 M x 50 ml = 0.05 M x V2
V2 = 1 ml
<em>So using 1ml of 0.05 M NaOH and 49 ml of Water</em>
<h3>Hope this helps</h3>
