Ateacher wants to figure out the amount of a solution that is needed for a titration experiment in a class lab. the class has 15 students, and each experiment needs 50 ml of solution.

if each student will perform the experiment two times, how many ml of solution will the teacher need for the whole class

Which of these conditions most likely produces an unstable isotope?

Select the correct answer from each drop-down menu.describe what happens to a carbon-11 atom when it undergoes positron emission.the decay of a carbon-11 atom _1_, and this causes it to emit _2_.options for 1: > changes a neutron into a proton> changes a proton into a neutron> is hit with a neutron> reconfigures its protons and neutronsoptions for 2: > a negatively charged electron-sized particle> a positively charged election-sized particle> two atoms and several neutrons> two neutrons and two protons

When does phenolphthalein turn pink? in the presence of a base in the presence of an acid when it is in a neutral solution when it is reacting with a metal