A compound is made of materials that are chemically combined in a fixed ratio and later cannot be separated. Mixtures often contain compounds. For comple, salt water contains two NaCI and H2o. Which of the following statements is true of matures?

Aphysical reaction is a process in which one or more reactants change into one or more products with different properties. select the best answer from the choices provided t f

The alkali metals (group 1) consist of lithium (3), sodium (11), potassium (19), rubidium (37), cesium (55), and francium (87). they are soft, metallic solids with low densities and low melting points. based on the data shown in figure 1, how many valence electrons do alkali metals share?

Sugar is dissolved in water. which is the solute? sugar neither both water