Base your answer on the information below and on your knowledge of chemistry. In a laboratory activity, a student titrates a 20.0-milliliter sample of HCl(aq) using
0.025 M NaOH(aq). In one of the titration trials, 17.6 milliliters of the base solution
exactly neutralizes the acid sample.

Show a numerical setup for calculating the concentration of the hydrochloric acid using
the titration data.

Determine the wavelength of the light absorbed when an electron in a hydrogen atom makes a transition from an orbital in the n=3 level to an orbital in the n=7 level.

What is an example of a physical property?

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