Explanation:
first of all you should know that
1 ml = 1 cm³
therefore
increase in volume after putting stone=∆volume
= 52 - 40
= 12 ml
= 12 cm^3
therefore volume of the rock= change in volume= 12cm^3
Answer:
The net ionic equation is the chemical equation that shows only those elements, compounds, and ions that are directly involved in the chemical reaction. As a general rule, if you balance the molecular equation properly, the net ionic equation will end up being balanced by both mass and charge.
Explanation:
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Answer:
The new concentration will be 0.01 M.
Explanation:
To determine the new concentration we use the following formula.
concentration (1) × volume (1) = concentration (2) × volume (2)
concentration (1) = 0.1 M
volume (1) = 100 mL
concentration (2) = unknown
volume (2) = 100 mL + 900 mL = 1000 mL
concentration (2) = [concentration (1) × volume (1)] / volume (2)
concentration (2) = (0.1 × 100) / 1000 = 0.01 M