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3 A student investigates how the concentration of an acid affects the speed of reaction with a 0.5
D filtration
mass of magnesium at 30°C.
The student has a beaker, concentrated acid, water and the apparatus below.
P a balance
Qa dock
R a measuring cylinder
S a thermometer
Which pieces of apparatus does the student use?
A P, Q and R only
B P, Q and S only
C Q, R and S only
DP, Q, R and S

Sagot :

Answer:

C Q, R and S only.

Thermometer: for measuring temperature.

Measuring cylinder: for measuring accurate volume used in standardization during determination of concentration.

dock: for holding solutions

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