A student investigates how the concentration of an acid affects the speed of the reaction with a 0.5g mass of magnesium at 30°C. 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 & R only
B. P, Q & S only
C. ​

d would be the most obvious choice to this question. leaders are supposed to herd their underlings like a shepherd to sheep. a leader should also listen to others when they are talking to one other to gain a better understanding of their mission and surroundings.

explanation:

answer:

an example of solubility is salt or sugar dissolving in water.

rate as brainliest plz

hes mad if he says,

explanation:

r!

answer:

Explanation:

i hope dis helps