Microscope, pH and Buffers

What is the function of A?

• Moves the slide front and back.

• Moves the slide from side to side.

• For detail focusing

• Moves the stage up and down

What is the position of letter e under the microscope?

• Upright

• Inverted

The ability to distinguish two closely spaced objects as being separate and distinct.

• Magnification

• Resolution

• Detailing

• None of the choices

Part of the microscope used to shift the objectives.

• Ocular

• Fine adjustment

• Coarse adjustment

• Revolving nosepiece

Scientist who studied the cork and discovered the cells.

• Hooke

• Leeuwenhoek

• Hanssen

• Schleiden

Any solution with a pH below 7 is considered to be

• acidic

• basic

• neutral

Which one was used to measure the pH in the virtual you did?

• Litmus paper

• pH paper

• phenolpthalein

• Thymol blue

An acid

• can be a compounds that releases hydrogen ions.

• can be a compound that releases hydroxyl ions.

• is a proton donor.

• Two of the three choices are correct about acids

When the OH^- concentration is higher than the H⁺, the solution is

• basic

• acidic

• neutral

• a strong acid

Based on your virtual lab,, which of the following is (are) basic?

• Oven cleaner

• Shampoo

• Antacids

• All of the choices