Water, pH and Macromolecules H2O and CH4 are both examples of acids molecules none of these ions acids molecules none of these ions ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules The lone pair electrons on oxygen in a H20 molecule are not important for the properties of water carry a partial negative charge form covalent bonds in ice carry a partial positive charge are not important for the properties of water carry a partial negative charge form covalent bonds in ice carry a partial positive charge ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Which of the following acid/base pairs act as natural buffers in living systems? H2PO4-/HPO42- H2CO3/HCO3- Histidine+/histidine All of these H2PO4-/HPO42- H2CO3/HCO3- Histidine+/histidine All of these ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules The elements oxygen, nitrogen, and carbon can all form covalent bonds with other elements are common elements in the molecules that make up living organisms All of these contain protons and neutrons in their atomic nuclei can all form covalent bonds with other elements are common elements in the molecules that make up living organisms All of these contain protons and neutrons in their atomic nuclei ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules If protein is made exclusively from nonpolar amino acids, then it will this protein interact with water? It will form a membrane in water It will be attracted to water be repelled by water It will act as a buffer and stabilize the pH It will form a membrane in water It will be attracted to water be repelled by water It will act as a buffer and stabilize the pH ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Which of the following statements about covalently bonded molecules is false? The chemical bonds that hold the molecule together are relatively strong Electrons are shared between the atoms that make up the molecule Noncovalent bonds may also be present, especially if the molecule is large Such molecules often result from the interaction of ionized atoms The chemical bonds that hold the molecule together are relatively strong Electrons are shared between the atoms that make up the molecule Noncovalent bonds may also be present, especially if the molecule is large Such molecules often result from the interaction of ionized atoms ANSWER DOWNLOAD EXAMIANS APP
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