Gizmo Test Questions with Complete Solutions

Gizmos - Identifying nutrients in foods Benedict Test - Test for monosaccharides Iodine/lugol Test - Test for starch Biuret Test - Test for proteins Sudan Test - Test for lipids Which number is equal to the number of protons in the atom? - Atomic Number No charge at all? - Neutrons (n0) Negative Charge? - Electrons (e-) Radioactive? - The atoms decay over time and emit radiation. Which isotope, Li-6 or Li-7 is the most common isotope of Lithium? - Li-7 Isotope? - An Element has the same number of protons, but different numbers of neutrons. What is a nucleus? - The center of the atom. What does Li Mean? - Lithium What is a atom? - Tiny particles of matter that are made up of three particles. What are the three particles? - Protons, Neutrons, and Electrons. What atom is located in the center? - Nucleus What is a mixture? - A mixture is something with many substances mixed together. What is a pure substance? - A pure substance is a define ratio of elements. Which particles are located in the? - Protons and Neutrons. Which particles orbit around the nucleus? - Electrons