Semmelweis entrance exam chemistry
Ionization of water - ANS-the switch of a proton from one water molecule to every other to
provide a hydroxide ion and a hydronium ion
Properties of water - ANS-• strong hydrogen bonds
• high warmth capability
• solvent
• wishes quite a few electricity to evaporate
• expands when freezes
• cohesion (sticks to itself)
• adhesion (sticks to different things)
What affect does temperature have on discount potentials? - ANS-if temperature increases,
capacity decreases
What are fragrant compounds? - ANS-compounds that contain a benzene ring
What are atomic orbitals? - ANS-regions wherein there is a high possibility of finding an electron
What are hydrogen bonds? - ANS-Bonds among hydrogen atom and atoms of the maximum
electronegative elements (N, O, F)
What are number one chemical bonds? - ANS-ionic, covalent, steel
What are proteinogenic amino acids? - ANS-eg. Glycine
-
What are secondary chemical bonds? - ANS-1. Hydrogen bonds
2. Van der Waals bonds
What are the 4 most important factors of dwelling organisms? - ANS-carbon, nitrogen, oxygen,
hydrogen
What are the first few electron configurations? - ANS-1s
2s, 2p
3s, 3p, 3d
4s, 4p, 4d, 4f
What are the intermolecular forces in water? - ANS-Hydrogen bonds, dipole-prompted dipole
forces, and London dispersion forces
Ionization of water - ANS-the switch of a proton from one water molecule to every other to
provide a hydroxide ion and a hydronium ion
Properties of water - ANS-• strong hydrogen bonds
• high warmth capability
• solvent
• wishes quite a few electricity to evaporate
• expands when freezes
• cohesion (sticks to itself)
• adhesion (sticks to different things)
What affect does temperature have on discount potentials? - ANS-if temperature increases,
capacity decreases
What are fragrant compounds? - ANS-compounds that contain a benzene ring
What are atomic orbitals? - ANS-regions wherein there is a high possibility of finding an electron
What are hydrogen bonds? - ANS-Bonds among hydrogen atom and atoms of the maximum
electronegative elements (N, O, F)
What are number one chemical bonds? - ANS-ionic, covalent, steel
What are proteinogenic amino acids? - ANS-eg. Glycine
-
What are secondary chemical bonds? - ANS-1. Hydrogen bonds
2. Van der Waals bonds
What are the 4 most important factors of dwelling organisms? - ANS-carbon, nitrogen, oxygen,
hydrogen
What are the first few electron configurations? - ANS-1s
2s, 2p
3s, 3p, 3d
4s, 4p, 4d, 4f
What are the intermolecular forces in water? - ANS-Hydrogen bonds, dipole-prompted dipole
forces, and London dispersion forces
