Which of the following statements best defines the percentage yield of a reaction? (4 points) O The ratio of measured yield over actual yield
O The amount of product measured after a reaction
The amount of measured yield over calculated yield
O The maximum amount of product that can be obtained

Which of the following nuclei would be the least stable a 2 protons, 2 neutrons b 1 proton 1 neutron c 1 proton 3 neutrons d 1 proton 2 neutrons

Which of the following is not a characteristic of a hydrogen bond? 1. it is responsible for the unusual physical properties of water. 2. it is weaker than a covalent bond. 3. it is stronger than other dipole-dipole interactions. 4. it can occur when hydrogen is covalently bound to very electronegative elements liks f, cl, br and i.

If a 20.0ml test tube measures 15.0cm, what is the length in meters?