Which of the following is a mixture? (1 point)
Responses
Salt, a substance made of sodium and chloride ions that are attracted to each other.
Salt, a substance made of sodium and chloride ions that are attracted to each other.
Water, a substance made of a type of molecule that has two hydrogens and one oxygen.
Water, a substance made of a type of molecule that has two hydrogens and one oxygen.
Helium gas, a substance made of helium atoms that are not attracted to each other.
Helium gas, a substance made of helium atoms that are not attracted to each other.
Coffee, a substance made of water molecules and caffeine molecules.