Mixtures involve two or more substances that are physically mixed or intermingled. however, these substances are not chemically bonded together. therefore, the substances can be present in any ratio. there are two types of mixtures: homogeneous and heterogeneous. a homogeneous mixture has a uniform composition whereas a heterogeneous mixture does not have a uniform composition. because of this, homogeneous mixtures look identical throughout the mixture to our eyes, as we cannot physically see the presence of more than one substance due to the uniformity. in terms of heterogeneous mixtures, we are able to see a physical boundary between different substances within the mixture, indicating the presence of more than one substance. which of the following is an example of a heterogeneous mixture?

in addition to spreading humanist ideas, erasmus has contributed to criticism of corruption in the church.

water is a polar molecule. a chemical bond is a force of attraction between atoms or ions. bonds form when atoms share or transfer valence electrons. atoms form chemical bonds to achieve a full outer energy level, which is the most stable arrangement of electrons. so, false

explanation:

in h2o molecule, two water molecules are bonded by a hydrogen bond but the bond between two h - o bonds within a water molecule are covalent. the greater the electronegativity difference, the more ionic the bond is. bonds that are partly ionic are called polar covalent bonds. nonpolar covalent bonds, with equal sharing of the bond electrons, arise when the electronegativities of the two atoms are equal.

d. cellulose and starch