Biology: Chemistry of life Part 1
Quiz by Dieterle 1
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10 questions
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- Q1Which of the following statements about water is correct?Water is a gas at room temperature.Water is a polar molecule.Water is composed of three oxygen atoms.Water is a non-polar molecule.30s
- Q2Which of the following best describes an ionic bond?A bond formed between oppositely charged ions.A bond formed between two non-metal atoms.A bond formed by the transfer of protons.A bond formed by the sharing of electrons.30s
- Q3What is the atomic number of helium?182430s
- Q4Which of the following is true about chemical bonds?Chemical bonds only involve the sharing of neutrons between atoms.Chemical bonds only involve the sharing of electrons between atoms.Chemical bonds only involve the transfer of protons between atoms.Chemical bonds involve the sharing or transfer of electrons between atoms.30s
- Q5Which of the following best describes a covalent bond?A bond formed by the transfer of protons between atoms.A bond formed by the sharing of electrons between atoms.A bond formed by the sharing of neutrons between atoms.A bond formed between oppositely charged ions.30s
- Q6Which of the following properties of water is responsible for capillary action?CohesionEvaporationSurface TensionAdhesion30s
- Q7Which of the following best describes the structure of an atom?Atoms consist of a nucleus containing protons and neutrons, surrounded by electrons.Atoms consist of a nucleus containing electrons, surrounded by protons.Atoms consist of a nucleus containing electrons, surrounded by protons and neutrons.Atoms consist of a nucleus containing protons and neutrons, surrounded by electrons and positrons.30s
- Q8Which property of water allows it to form hydrogen bonds?Surface tensionViscosityPolarityBoiling point30s
- Q9Which property of water causes it to have a high surface tension?CohesionSurface areaAdhesionEvaporation30s
- Q10
What is surface tension?
when a molecule has positive and negative charged areas
the tendency of water molecules to 'stick together"
term describing the tensional force created by water at its boundary with air
the tendency of water molecules to repel some substances
30s