Marti has a sore throat. his doctor suggests gargling with salt water to reduce the pain. he heats water to 300 k and wonders how much salt he should add to avoid excess salt at the bottom of the cup. how much sodium chloride should marti add? did she create an unsaturated, saturated, or supersaturated solution? a. 30g b. 40g c. 50g d. 60g

Abullet found at a crime scene may be used as evidence in a trial if the percentage of metals match to the composition of metals in a bullet from the suspect's ammunition. a forensic scientist's analysis of the bullet shows that it contains 11.9 g of lead, 0.5 g of tin, and 0.8 b of antimony. what is the percentage of lead metal in the bullet? express your answers to the one's place.

If 1.8 l of water is added to 2.5l of a 7.0 m koh solution, what is the molarity of the new solution

May someone me with these science questions