A student investigates how the concentration of an acid affects the speed of the reaction 0.5g mass of magnesium at 30 degrees

The student has a beaker, concentrated acid, water and the apparatus below:

P a balance; Q a clock; R a measuring cylinder; S a thermometer
Which pieces of apparatus does the student use?
A) P, Q and R
B) P, Q and S
C) Q, R and S
D) P, Q, R and S

it would be d. henry moseley

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and sorry if i'm late. have a good rest of your day! : d

hurricanes form when warm, moist air from the ocean surface quickly rises into the atmosphere and forms storm clouds and rain. when the clouds are formed, heat is released which warms the cool air in the upper regions of the atmosphere so that the cycle can continue. which two phases of the water cycle are repeated in this process?

i think its 100.

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