Plz ! of the four examples listed below, which describe a chemical change? i. boiling water and producing water vapor ii. freezing liquid water into ice cubes iii. mixing salt into a beaker of water until the salt dissolves iv. mixing hydrogen gas and oxygen gas together to make liquid water when a chemical change occurs something new is formed. the reactants have different properties than the products. the product cannot easily be separated into its original parts.

For a patient with the following pes statement and interventions, which would be the most appropriate monitoring and evaluating data? pes statement: inadequate calcium intake related to food and nutrition related knowledge deficit as evidenced by statements that the only dietary source of calcium is milk and she believes that she is lactose intolerant. patient’s nutrition prescription is for a diet providing 1200 mg calcium per day. patient was provided with in-depth nutrition education on alternative dietary and supplement sources of calcium. a. calcium intake (at subsequent visit) b. knowledge assessment by asking patient to identify food sources from menus and shopping list (at the end of the current visit) c. serum calcium (at next visit) d. both a and b e. both a and c

Give the orbital configuration of the phosphorus (p) atom.

Which elements are found in glucose, the product of photosynthesis? a. carbon, hydrogen, and oxygen b. carbon and hydrogen c. carbon, nitrogen, and oxygen d. hydrogen, nitrogen, and carbon