student set up an experiment using a Visking bag containing concentrated sugar solution. Visking tubing is permeable to water but not to sugar. Figure A, shows what the bag looked like at the start and figure B shows the bag after one hour. Explain why the bag has changed its shape after one hour. Use the term “water potential” in your explanation (2).​

What best explains whether bromine (br) or neon (ne) is more likely to form a covalent bond? bromine forms covalent bonds because it has seven valence electrons, but neon has eight valence electrons and already fulfills the octet rule. bromine forms covalent bonds because it has many electron shells, but neon has only two electron shells and is tightly bound to its electrons. neon forms covalent bonds because it can share its valence electrons, but bromine has seven valence electrons and can gain only one more electron. neon forms covalent bonds because it has only two electron shells, but bromine has many electron shells and will lose electrons in order to fulfill the octet rule.