Sodium chloride, or na*ci, is an example of a molecule whose atoms are
held together by which of the following?
oa) hydrogen bonds
ob) covalent bonds
oc) metallic bonds
od) ionic bonds

Which of these statements are true about scientific theories and hypothesis

Onsider the paragraph above. what is one chemical property of water? a) water is a polar molecule. b) water is the universal solvent. c) water reacts with group 1 metals. d) water has a high specific heat capacity.

What is required in the genotype of an individual to show a recessive trait? a. two recessive alleles b. at least one recessive allele c. no recessive alleles